Brazilian Journal of Veterinary Pathology
type: channel
description: The purpose of the BJVP, a peer-reviewed journal, is to publish original full papers, short communications, case reports, letters, reviews (by invited experts) and abstracts of scientific meetings. The preferable subjects is natural and experimental pathology. All the articles are submitted to scientific reviewers.
publisher: ABPV
language: en
publication name: Brazilian Journal of Veterinary Pathology
issn: 1983-0246
items: Chronic exfoliative dermatitis in a German Shorthaired Pointer dog
items: Granulomatous hepatitis associated with plant material in a cat
items: Mycoplasmosis infection with secondary heterophilic andnecrotizing blepharoconjunctivitis and sinusitis in a chicken
items: Caprine thymoma
items: Fibrous osseous dystrophy and early-onsetchronic kidney disease from renal dysplasia in a juvenile dog
items: Feline Malignant Melanoma
items: Malignant catarrhal fever and Clostridium perfringens co-infection in White-Spotted Deer: a fatal encounter
items: Carcinoma with medullary signs in mammary glands in cats: morphohistological study and immunohistochemical analysis
items: Wildfire-related lesions in a free-ranging Paraguayan Hairy Dwarf Porcupine (Coendou spinosus) in Brazil
items: Unilateral segmental aplasia of the epididymis and ductus deferens in a mixed-breed dog
items: Neoplasia of glandular and blood vessel origin in Canis familiaris: diagnostic and therapeutic approach
items: Fatal canine metaldehyde poisoning in Southern Brazil
items: Anais do 6º Congresso Brasileiro de Patologia Veterinária (6º CBPV), XX Encontro Nacional de Patologia Veterinária (XX ENAPAVE) e XII Simpósio Brasileiro da Davis-Thompson Foundation
items: Metastatic canine cutaneous clear cell adnexal carcinoma: case report
items: https://bjvp.org.br/bjvp/article/view/553
items: Pulmonary vascular amyloidosis in an aged dog
items: Fibrinosuppurative valvular endocarditis withmyxomatous valvular degeneration in a mare
items: Nasal neuroendocrine carcinoma in a dog
items: Acute colic secondary to sand enteropathy (sablosis) in a horse
items: Hepatic eimeriosis in rabbits
items: Uremic gastritis and calcium oxalate crystallization in a dog
items: Xanthogranulomatosis in an eclectus parrot
items: Equine Nocardioform Placentitis
items: Parvovirosis in a margay (Leopardus wiedii)
items: Congenital goiter in sibling goat kids
items: Ultimobranchial body cyst in a neonatal goat
items: Strangles and infarctive purpura hemorrhagica in a horse
items: Heartworm in a southern tiger cat (Leopardus guttulus) in Santa Catarina, Brazil
items: Clinicopathologic features, tumor staging, and intratumoral inflammation in canine oral non-tonsillar squamous cell carcinomas
items: Primary extraskeletal osteosarcoma of the omentum in a young dog

Chronic exfoliative dermatitis in a German Shorthaired Pointer dog
type: item
description: History: A 5-year-old, spayed female, German Shorthaired Pointer dog presented to a veterinary clinic for a second opinion following a history of chronic dermatitis and suspected allergies. Clinical signs improved with prednisone, but there was no appreciable response with antibiotics or oclacitinib (Apoquel). Lesions initially developed on the chest and occasionally involved paw pads and lips.
subject: Diagnostic Exercises
  topic: section
subject: Diagnostic Exercises
  topic: keywords
creator: Michelle Rubio Sanchez
creator: Lauren Stranahan
rights: Copyright (c) 2026 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2026-04-08
publication date: 2026-04-08
starting page: e19S106
ending page: e19S106
doi: 10.24070/bjvp.1983-0246.019S106

Granulomatous hepatitis associated with plant material in a cat
type: item
description: History: A three-year-old, female, mixed-breed, FeLV-positive cat, with a history of suture dehiscence and evisceration following a previous ovariohysterectomy at an unspecified time, was presented with dyspnea, prostration, decreased level of consciousness, and abdominal distension, in addition to pleural and pericardial effusion. Cytological evaluation of the pleural fluid revealed high cellularity composed of neoplastic lymphoid cells. Thoracic radiographs demonstrated increased volume and opacity of the mediastinum, associated with dorsal tracheal displacement. Due to the presumptive diagnosis of lymphoma, the severity of the clinical signs, and the lack of response to supportive treatment, euthanasia was elected.
subject: Diagnostic Exercises
  topic: section
subject: Diagnostic Exercises
  topic: keywords
creator: Bianca Camargo de Lima
creator: Wanessa Sayuri Nishikawa Chiode
creator: João Victor Prates Campos
creator: Juliana Viegas de Assis
creator: Alex Junior Souza de Souza
rights: Copyright (c) 2026 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2026-04-08
publication date: 2026-04-08
starting page: e19S105
ending page: e19S105
doi: 10.24070/bjvp.1983-0246.019S105

Mycoplasmosis infection with secondary heterophilic andnecrotizing blepharoconjunctivitis and sinusitis in a chicken
type: item
description: History: A 3-months-old male Belgian Bearded d’Uccle chicken was presented together with two other juvenile chickens for progressive ocular and respiratory disease. The birds had been previously treated with oxytetracycline and topical ophthalmic antibiotics, including Tricin® ointment and chloramphenicol eye drops, without clinical improvement. Clinical signs progressively worsened. At presentation, all birds exhibited ocular lesions. The Belgian d’Uccle chick showed bilateral periocular distension and deformation, with complete obscuration of the left eye. Respiratory effort was increased, with audible crackles consistent with air sac involvement. The oral cavity was malodorous. Feces were light brown and loose, and the bird was markedly emaciated. Two of the affected chickens, including the Belgian d’Uccle chick, were bred on the owner’s property from a newly introduced rooster. The third bird was an unrelated Showgirl cockerel purchased as a day-old chick that subsequently developed similar clinical signs.
subject: Diagnostic Exercises
  topic: section
subject: Diagnostic Exercises
  topic: keywords
creator: Evaristo Di Napoli
creator: Ticiana Brasil Ervedosa
creator: Rachael Clark
creator: Ildiko Erdelyi
creator: Chiara Palmieri
rights: Copyright (c) 2026 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2026-04-08
publication date: 2026-04-08
starting page: e19S104
ending page: e19S104
doi: 10.24070/bjvp.1983-0246.019S104

Caprine thymoma
type: item
description: History: 6-year-old, neutered male, goat was submitted for necropsy. Clinical history included 3 weeks of lameness following possible trauma which was gradually improving. The day prior to euthanasia this goat was acutely lethargic and anorexic. On physical exam, the goat was thin and weak. The animal was euthanized due to quality-of-life concerns.
subject: Diagnostic Exercises
  topic: section
subject: Diagnostic Exercises
  topic: keywords
creator: Kaylin Lizette Moctezuma
creator: Emily Reinhardt
creator: Julia Burkett
rights: Copyright (c) 2026 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2026-04-08
publication date: 2026-04-08
starting page: e19S103
ending page: e19S103
doi: 10.24070/bjvp.1983-0246.019S103

Fibrous osseous dystrophy and early-onsetchronic kidney disease from renal dysplasia in a juvenile dog
type: item
description: History: A postmortem examination was performed on an 8-month-old, intact female crossbred dog that was humanely euthanized following an acute onset of vomiting, diarrhea, and lethargy. The animal had renal azotemia, chronic kidney disease and small stature.
subject: Diagnostic Exercises
  topic: section
subject: Diagnostic Exercises
  topic: keywords
creator: Deepa Cavalli-Sforza
creator: Pablo Díaz-Santana
creator: Bernat Martí-García
creator: Alejandro Suarez-Bonnet
rights: Copyright (c) 2026 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2026-04-08
publication date: 2026-04-08
starting page: e19S102
ending page: e19S102
doi: 10.24070/bjvp.1983-0246.019S102

Feline Malignant Melanoma
type: item
description: History: A 5-year-old female spayed domestic shorthair initially presented to oncology services for a 4-month history of a subcutaneous mass on the right side of the mandible that extended into the mouth. The right eyeball had been previously enucleated one year prior due to an undisclosed reason. At presentation, the animal was having difficulty eating and breathing. Due to concerns for quality of life, humane euthanasia was elected.
subject: Diagnostic Exercises
  topic: section
subject: Diagnostic Exercises
  topic: keywords
creator: Cassandra M. Powers
rights: Copyright (c) 2026 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2026-04-08
publication date: 2026-04-08
starting page: e19S101
ending page: e19S101
doi: 10.24070/bjvp.1983-0246.019S101

Malignant catarrhal fever and Clostridium perfringens co-infection in White-Spotted Deer: a fatal encounter
type: item
description: Malignant Catarrhal Fever (MCF) is one of the diseases reported as a transboundary disease, which is commonly caused by Alcelaphine herpesvirus 1 (AlHV-1) and Ovine herpesvirus 2 (OvHV-2). Cervidae (Deer) are susceptible to this virus infection, with the outbreak occurring sporadically. A total of 5 out of 42 deer were presented with sudden death and weakness, with bloody diarrhea ranging from a few days to 24 hours before death. Gross and histopathological evaluations revealed severe haemorrhagic enteritis, pulmonary edema, and widespread necrotizing vasculitis observed in the lung, liver, and kidney. Diagnostic laboratory testing revealed a positive result of MCF (OvHV-2) virus from the lung samples through Polymerase chain reaction (PCR). Anaerobic culture, PCR and sequencing of the intestinal sample were positive for C. perfringens. Following the deaths of 2 deer, examination of the feed revealed an unplanned dietary transition from deer pellet to goat pellet with the differences in the protein content (min 14%) with mostly grains and higher moisture content (max 13%) in the goat pellet, leading to possible changes in the gastrointestinal flora of the deer gut which causes proliferation of C. perfringens. Presence of OvHV-2 targets the CD8+ lymphocytes that induce systemic inflammation, causing widespread vascular injury, which further promotes proliferation of C. perfringens that contributes to the severity of the enteritis observed. The resulting necrohaemorrhagic enteritis leads to hypovolemic shock, ultimately death due to circulatory failure. This report highlights the review, presents findings, transmission and pathology of Malignant Catarrhal Fever and C. perfringens in white spotted deer.
subject: Articles
  topic: section
subject: Malignant Catarrhal Fever
  topic: keywords
subject: Ovine herpesvirus 2
  topic: keywords
subject: Clostridium perfringens
  topic: keywords
subject: transboundary disease
  topic: keywords
creator: Fathin Faahimaah Abdul Hamid
creator: Jasni Sabri
creator: Norsyamimi Farhana Mat Kamir
creator: Che Wan Salma Che Wan Zalati
creator: Nani Izreen Mohd Sani
creator: Abubakar Danmaigoro
creator: Mohammad Auzaie Afandi
creator: Brenda Sabrina Gilbert
creator: Amirul Faiz Mohd Azmi
creator: Alun Williams
rights: Copyright (c) 2026 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2026-03-08
publication date: 2026-03-08
starting page: e019010
ending page: e019010
doi: 10.24070/bjvp.1983-0246.019010

Carcinoma with medullary signs in mammary glands in cats: morphohistological study and immunohistochemical analysis
type: item
description: Breast carcinoma in cats is a serious oncological problem, especially considering that such tumors can cause metastasis to the lymph nodes and other organs. This article considers five cases of carcinoma with medullary signs in cats, of which two have metastases in regional lymph nodes. The morphohistological characteristics of tumors and the results of an immunohistochemical study using NCL and NPM1 markers are analyzed in detail.
subject: Articles
  topic: section
subject: cats
  topic: keywords
subject: mammary gland
  topic: keywords
subject: carcinoma with medullary signs
  topic: keywords
subject: morphohistological examination
  topic: keywords
subject: immunohistochemical analysis
  topic: keywords
subject: Nucleolin
  topic: keywords
subject: NPM1
  topic: keywords
subject: Nucleophosmin
  topic: keywords
creator: Mitenko Vasilisa Vasilievna
creator: Dilekova Olga Vladimirovna
creator: Galustyan Dmitry Benikovich
creator: Ivanidi Maria Spartakovna
creator: Zinchenko Dmitry Alekseevich
rights: Copyright (c) 2026 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2026-03-07
publication date: 2026-03-07
starting page: e019008
ending page: e019008
doi: 10.24070/bjvp.1983-0246.019008

Wildfire-related lesions in a free-ranging Paraguayan Hairy Dwarf Porcupine (Coendou spinosus) in Brazil
type: item
description: The impacts of wildfire smoke on the health and behavior of wildlife are largely unknown and a few studies have explicitly considered the impact of wildfire smoke inhalation on the health of wildlife. Veterinarians should be aware of how animals behave during forest fires and the lesions are most common in different groups of animals. We describe here the injuries found in a porcupine that was a victim of wildfire, in a State Park, after a balloon crash. Despite the care provided, the animal died. At necropsy, it showed singed fur, erythema on the skin, swollen lungs, and congestion in the kidney. Microscopic examination revealed pulmonary edema, carbon pigmentation in the alveoli, liver degeneration, acute tubular injury in the kidney, and cardiac hemorrhage. The cardiorespiratory lesions were the most significant finding and were associated with the cause of death. These findings are a warning sign, since rescue veterinarians are often concerned primarily with providing support for burns visible on physical examination, neglecting cardiorespiratory function and metabolic changes that may be present. Necropsy of an animal killed by a forest fire should always be encouraged, as it can help clarify the events that occurred, allows comparative pathology and develop intensive care protocols, reducing the loss of life.
subject: Articles
  topic: section
subject: burns
  topic: keywords
subject: conservation
  topic: keywords
subject: pathology
  topic: keywords
subject: intensive care
  topic: keywords
creator: Ticiana Zwarg
creator: Alex Junior Souza de Souza
creator: Melissa Prosperi Peixoto
creator: Aline Santana da Hora
creator: Lilian Rose Marques de Sá
rights: Copyright (c) 2026 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2026-03-07
publication date: 2026-03-07
starting page: e019007
ending page: e019007
doi: 10.24070/bjvp.1983-0246.019007

Unilateral segmental aplasia of the epididymis and ductus deferens in a mixed-breed dog
type: item
description: A 9-month-old male mixed-breed dog was presented for elective bilateral orchiectomy. During the procedure, segmental aplasia of the tail of the right epididymis and absence of the corresponding ductus deferens were observed. Additionally, the head of the epididymis on the affected side appeared enlarged. Histopathological examination revealed multiple sperm granulomas with inflammatory infiltrate composed of macrophages, multinucleated giant cells, neutrophils, lymphocytes, and plasma cells, as well as fibrosis. The epididymal tail and ductus deferens were absent. These gross and microscopic findings supported a diagnosis of segmental aplasia of the epididymis and ductus deferens.
subject: Articles
  topic: section
subject: congenital malformations
  topic: keywords
subject: reproductive
  topic: keywords
subject: pathology
  topic: keywords
subject: dog
  topic: keywords
creator: Laice Alves da Silva
creator: Amanda Otoni Vasconcelos
creator: Raquel Autran Theme
creator: Thaynara Parente de Carvalho
creator: Renato Lima Santos
rights: Copyright (c) 2026 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2026-03-07
publication date: 2026-03-07
starting page: e019006
ending page: e019006
doi: 10.24070/bjvp.1983-0246.019006

Neoplasia of glandular and blood vessel origin in Canis familiaris: diagnostic and therapeutic approach
type: item
description: Cutaneous neoplasms in dogs are common findings in routine veterinary practice, especially in older animals. Among these, adenoma and hemangioma stand out, both of benign nature but capable of causing discomfort and the risk of secondary complications. This paper reports the case of a 7-year-old mixed-breed male dog weighing 5 kg, which presented two distinct nodular formations: a subcutaneous lesion on the right dorsal region and another at the base of the tail. The first was identified as a hepatoid cell adenoma, and the second as a hemangioma, both confirmed by histopathological examination after surgical excision. The clinical case highlights the importance of early evaluation of skin masses, precise surgical management, and diagnostic differentiation between tumor types, in accordance with current veterinary oncology guidelines.
subject: Articles
  topic: section
subject: benign neoplasm
  topic: keywords
subject: cutaneous tumor
  topic: keywords
subject: dog surgery
  topic: keywords
creator: Loreno da Costa Francez
creator: Max Alex Santos Ferreira
creator: Luiz Fernando Moraes Moreira
creator: Elaine Lopes de Carvalho
rights: Copyright (c) 2026 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2026-03-07
publication date: 2026-03-07
starting page: e019005
ending page: e019005
doi: 10.24070/bjvp.1983-0246.019005

Fatal canine metaldehyde poisoning in Southern Brazil
type: item
description: Metaldehyde is commonly used as a molluscicide, and accidental ingestion in dogs is a recognized toxicologic emergency with potentially fatal outcomes. A 4-month-old female Pit Bull was presented to a veterinary emergency after ingesting an unknown amount of a 5% metaldehyde-based slug bait (Metarex®). Clinical signs began within minutes and included stupor, hypersalivation, and generalized tonic-clonic seizures. Supportive care was provided, including anesthetic coma with propofol and isoflurane, gastric lavage, diazepam, N-acetylcysteine, and oxygen therapy; however, the animal died in eight hours. At necropsy, the stomach and intestines contained abundant blue-to-green amorphous and finely granular material, as well as plastic fragments consistent with Metarex® packaging. No significant microscopic alterations were observed in internal organs. The diagnosis was based on the clinical course, history of exposure, and characteristic gastrointestinal contents. In suspected cases, identification of metaldehyde in the gastrointestinal tract can aid diagnosis when toxicologic confirmation is unavailable.
subject: Articles
  topic: section
subject: molluscicide
  topic: keywords
subject: slug bait
  topic: keywords
subject: acute poisoning
  topic: keywords
creator: Rômulo Debortoli
creator: Alexandre Arenales
rights: Copyright (c) 2026 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2026-03-07
publication date: 2026-03-07
starting page: e019002
ending page: e019002
doi: 10.24070/bjvp.1983-0246.019002

Anais do 6º Congresso Brasileiro de Patologia Veterinária (6º CBPV), XX Encontro Nacional de Patologia Veterinária (XX ENAPAVE) e XII Simpósio Brasileiro da Davis-Thompson Foundation
type: item
description: É com grande satisfação que apresentamos os Anais do 6º Congresso Brasileiro de Patologia Veterinária (6º CBPV), realizado conjuntamente com o XX Encontro Nacional de Patologia Veterinária (XX ENAPAVE) e o XII Simpósio Brasileiro da Davis-Thompson Foundation. Este importante evento científico ocorreu de forma totalmente remota, entre os dias 26 e 30 de julho de 2021, em um dos períodos mais desafiadores da história recente da humanidade, marcado pela pandemia da COVID-19. Mesmo diante das limitações impostas pelo distanciamento social e pelas incertezas daquele momento, o congresso demonstrou a força, a resiliência e o compromisso da comunidade científica da Patologia Veterinária com a produção e a disseminação do conhecimento. A realização do evento em formato virtual possibilitou ampla participação nacional e internacional, consolidando-se como um espaço plural de troca científica, atualização profissional e fortalecimento institucional da área. Esta edição do congresso contou com o maior número de palestrantes já registrado na história do CBPV, reunindo 67 especialistas provenientes de diferentes regiões do Brasil e de diversos países. Esses profissionais, mesmo vivenciando contextos locais igualmente desafiadores, aceitaram generosamente contribuir com o evento, compartilhando experiências, avanços científicos, abordagens diagnósticas e perspectivas futuras da Patologia Veterinária. Além das palestras, o evento recebeu um expressivo número de contribuições científicas, totalizando 301 resumos, apresentados na forma de pôsteres digitais, os quais estão reunidos nestes Anais. Os trabalhos refletem a diversidade temática, metodológica e institucional da área, abrangendo desde a patologia diagnóstica até estudos experimentais, patologia comparada, doenças infecciosas, patologia de animais de produção, de companhia e silvestres, entre outros temas relevantes. Os Anais do 6º CBPV representam, portanto, não apenas um registro científico do evento, mas também um testemu…
subject: Supplement 2 - Anais do 6º Congresso Brasileiro de Patologia Veterinária (6º CBPV), XX Encontro Nacional de Patologia Veterinária (XX ENAPAVE) e XII Simpósio Brasileiro da Davis-Thompson Foundation
  topic: section
subject: Annals
  topic: keywords
subject: 6º Congresso Brasileiro de Patologia Veterinária (6º CBPV)
  topic: keywords
subject: XX Encontro Nacional de Patologia Veterinária (XX ENAPAVE)
  topic: keywords
subject: XII Simpósio Brasileiro da Davis-Thompson Foundation
  topic: keywords
creator: Francisco de Assis Leite Souza
rights: Copyright (c) 2025 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2026-01-20
publication date: 2026-01-20

Metastatic canine cutaneous clear cell adnexal carcinoma: case report
type: item
description: Canine cutaneous clear cell adnexal carcinoma (CCCCAC) is a rare primary cutaneous adnexal neoplasm. Microscopically, CCCCAC is characterized by dermal and/or subcutaneous lobules of pleomorphic polygonal to spindle-shaped cells with clear, glycogen-rich cytoplasm containing variably sized vacuoles with indistinct borders frequently associated with peripheral palisading, follicular papillary mesenchymal body–like structures, comedonecrosis, and lymphovascular invasion. Despite aggressive microscopic features, the biological behavior of CCCCAC in dogs remains poorly defined, and metastatic rates are likely underestimated. This report describes a metastatic case of CCCCAC in an 11-year-old mixed-breed, neutered male dog presenting with a cervical cutaneous mass and progressive pulmonary and lymph node metastases. Fine-needle aspiration cytology supported the diagnosis of a malignant epithelial neoplasm. Histopathology revealed a multilobulated, poorly demarcated, infiltrative neoplasm composed of clear cells with marked pleomorphism, high mitotic activity, comedonecrosis, and extensive lymphovascular invasion. Histochemical staining demonstrated cytoplasmic glycogen accumulation by periodic acid–Schiff positivity with diastase sensitivity. Immunohistochemically, neoplastic cells showed diffuse cytoplasmic immunoreactivity for pan-cytokeratin, variable expression of vimentin and S-100, and absence of melan-A, smooth muscle actin, and thyroid transcription factor-1 labeling, confirming the diagnosis of CCCCAC. Disease progression occurred despite supportive care, and necropsy revealed marked local aggressiveness and widespread metastases to lymph nodes, lungs, parietal pleura, and pancreas. To the authors’ knowledge, this is the first documented case of metastatic CCCCAC in Brazil.
subject: Accepted manuscripts
  topic: section
subject: dog
  topic: keywords
subject: skin neoplasia
  topic: keywords
subject: histopathology
  topic: keywords
subject: immunohistochemistry
  topic: keywords
creator: Gustavo Silva Schiavi
creator: Lais Medrado do Nascimento
creator: Carine Vieira do Amaral
creator: Luana Lopes Patente
creator: Evelin da Silva Souza
creator: Sandy Lorena Pulecio-Santos
creator: Juliana Viegas de Assis
creator: Alex Junior Souza de Souza
rights: Copyright (c) 2026 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2026-04-09
publication date: 2026-04-09
starting page: e019012
ending page: e019012
doi: 10.24070/

https://bjvp.org.br/bjvp/article/view/553
type: item
title: Anais do 8º Congresso de Patologia Veterinária (CPV), XXII Encontro Nacional de Patologia Veterinária(ENAPAVE), XVI Simpósio Brasileiro da Davis-Thompson Foundation, VII Encontro Internacional de Saúde Animal e Prevenção (ENISAP) e I Simpósio de Sanidade Animal do CRMV-MT
description: É com grande satisfação que apresentamos os anais do 8º Congresso de Patologia Veterinária (CPV), do XXII Encontro Nacional de Patologia Veterinária (ENAPAVE), do XVI Simpósio Brasileiro da Davis-Thompson Foundation, do VII Encontro Internacional de Saúde Animal e Prevenção (ENISAP) e do I Simpósio de Sanidade Animal do CRMV-MT. Este magnífico evento ocorreu de 09 a 12 de setembro de 2025, no Centro de Eventos do Pantanal, em Cuiabá, Mato Grosso, Brasil. Estes eventos associados foram frutos de uma colaboração entre a Associação Brasileira de Patologia Veterinária (ABPV) e o Colégio Brasileiro de Patologia Animal (CBPA), contando com o valioso apoio da Davis-Thompson Foundation, da Universidade Federal do Mato Grosso, do Conselho Regional de Medicina Veterinária do Mato Grosso, além de grande número de patrocinadores, aos quais estendemos nossos sinceros agradecimentos. Após o sucesso do retorno à forma 100% presencial do Congresso de Patologia Veterinária (CPV) alcançado durante a sua sétima edição, em João Pessoa, em 2023, é com muito entusiasmo que venho como presidente da Associação Brasileira de Patologia Veterinária (ABPV), em nome da Diretoria 2024/2025, agradecer a todos pela massiva presença no 8º CPV, XXII ENAPAVE, em Cuiabá, Mato Grosso, Brasil. A região Centro Oeste carrega um forte laço com o precursor do CPV, nosso querido ENAPAVE. O primeiro ENAPAVE ocorreu em 1983, na Universidade Federal de Mato Grosso do Sul, em Campo Grande. Apesar do evento ter visitado nossa região em várias outras ocasiões: Campo grande 2001 e 2007, Goiânia 2011 e Brasília 2017, está foi a primeira vez que o CPV/ENAPAVE ocorreu na cidade de Cuiabá. Nossa cidade é reconhecida frequentemente como referência em altas temperaturas, mas mostramos, durante o evento, que nosso calor humano e acolhida é mais escaldante que as altas temperaturas de nossa cidade. O evento ocorreu entre os dias 09 e 12 de setembro de 2025, no Centro de Eventos do Pantanal, local climatizado e com ampla ca…
subject:
  topic: section
  value: Supplement - Anais do 8º Congresso de Patologia Veterinária (CPV), XXII Encontro Nacional de Patologia Veterinária (ENAPAVE), XVI Simpósio Brasileiro da Davis-Thompson Foundation, VII Encontro Internacional de Saúde Animal e Prevenção (ENISAP) e I Simpósio de Sanidade Animal do CRMV-MT
subject: Annals
  topic: keywords
subject: 8º Congresso de Patologia Veterinária (CPV)
  topic: keywords
subject: XXII Encontro Nacional de Patologia Veterinária (ENAPAVE)
  topic: keywords
subject: XVI Simpósio Brasileiro da Davis-Thompson Foundation
  topic: keywords
subject: VII Encontro Internacional de Saúde Animal e Prevenção (ENISAP)
  topic: keywords
subject: I Simpósio de Sanidade Animal do CRMV-MT
  topic: keywords
creator: Fernando Henrique Furlan
creator: Francisco de Assis Leite Souza
rights: Copyright (c) 2025 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2025-12-30
publication date: 2025-12-30

Pulmonary vascular amyloidosis in an aged dog
type: item
description: History: The carcass of a 14-year-old, female Boston Terrier was submitted for necropsy. The clinical history for the last year was dominated by recurrent and progressive episodes of dyspnea, stertor, and tachypnea. The patient had a prior history of a grade 3 cutaneous mast cell tumor that was excised years ago. Clinical investigations during the dog’s life included thoracic radiographs, which revealed a mild patchy interstitial pattern and tracheal collapse. The owner declined blood analysis and other diagnostics on several occasions due to financial constraints. The final episode was characterized by a severe respiratory crisis with oxygen saturation below 90%. Given the poor prognosis and the animal’s deteriorating condition, humane euthanasia was performed.
subject: Diagnostic Exercises
  topic: section
creator: Constanza A. Rodriguez
creator: Jaime Weisman
creator: Francisco R Carvallo
rights: Copyright (c) 2025 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2025-12-22
publication date: 2025-12-22
starting page: e018S128
ending page: e018S128
doi: 10.24070/bjvp.1983-0246.018S128

Fibrinosuppurative valvular endocarditis withmyxomatous valvular degeneration in a mare
type: item
description: Clinical History: A 12-year-old Azteca mare died unexpectedly with no premonitory clinical signs being observed.
subject: Diagnostic Exercises
  topic: section
creator: Michelle Rubio Sanchez
creator: Carmina Migoni
creator: Francisco A. Uzal
creator: Javier Asin
creator: Eileen Henderson
rights: Copyright (c) 2025 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2025-12-22
publication date: 2025-12-22
starting page: e018S127
ending page: e018S127
doi: 10.24070/bjvp.1983-0246.018S127

Nasal neuroendocrine carcinoma in a dog
type: item
description: History: A 10-year-old male neutered Golden Retriever dog presented for seizures and a tendency for clockwise circling. A large extra-axial homogenously contrast-enhancing mass was seen with magnetic resonance imaging in the right frontal lobe/olfactory bulb area extending into the nasal cavity. A transfrontal craniotomy with debulking was performed with cytological touch impressions and biopsy. Acute-onset focal seizures and episodes of compulsive circling started around 1 month following surgery, with regrowth of the extra-axial mass with secondary perilesional edema on imaging. Euthanasia was elected.
subject: Diagnostic Exercises
  topic: section
creator: Yiqing Gong
creator: Lina Crespo Bilhava
creator: Emily Swan
creator: Elizabeth Parsley
creator: Elise LaDoucer
creator: Leslie Sharkey
creator: Emily Brinker
rights: Copyright (c) 2025 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2025-12-22
publication date: 2025-12-22
starting page: e018S126
ending page: e018S126
doi: 10.24070/bjvp.1983-0246.018S126

Acute colic secondary to sand enteropathy (sablosis) in a horse
type: item
description: History: A 24–year-old Stockhorse gelding presented for veterinary assessment after developing profuse watery diarrhea. The horse presented with a distended abdomen, decreased gut sounds on both quadrants on the left-hand side, absent gut sounds on the right-hand side and was hypothermic (36.8°C) with a heart rate of 44 bpm. The horse was drenched with water, paraffin oil and electrolytes via a nasogastric tube. No net reflux was obtained. Despite the administration of pain relief and sedation, the gelding’s heart rate continued to increase to 68 bpm. The gelding was transported to a referral service but died upon arrival.
subject: Diagnostic Exercises
  topic: section
creator: Althea Wang
creator: Chi Hin Ng
creator: Viviana Gonzalez Astudillo
rights: Copyright (c) 2025 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2025-12-22
publication date: 2025-12-22
starting page: e018S125
ending page: e018S125
doi: 10.24070/bjvp.1983-0246.018S125

Hepatic eimeriosis in rabbits
type: item
description: History One hundred and fifty 5-month-old crossbred rabbits raised for meat production were examined at a slaughterhouse. No abnormalities were observed during ante-mortem inspection.
subject: Diagnostic Exercises
  topic: section
creator: Renan Hermes
creator: Alexandre Arenales
rights: Copyright (c) 2025 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2025-12-22
publication date: 2025-12-22
starting page: e018S124
ending page: e018S124
doi: 10.24070/bjvp.1983-0246.018S124

Uremic gastritis and calcium oxalate crystallization in a dog
type: item
description: Clinical History: A 7-year-old female intact Welsh Corgi mix was presented to emergency services for vomiting, diarrhea, inappetence, and lethargy. Over the last 24 to 48 hours, she vomited approximately 5 to 6 times a day.
subject: Diagnostic Exercises
  topic: section
creator: Emily G. Lewis
creator: Kayla J. Alexander
creator: Timothy W. Morgan
rights: Copyright (c) 2025 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2025-12-22
publication date: 2025-12-22
starting page: e018S123
ending page: e018S123
doi: 10.24070/bjvp.1983-0246.018S123

Xanthogranulomatosis in an eclectus parrot
type: item
description: History: A 14-year-old female eclectus parrot was submitted for necropsy with a history of abdominal distension and weight gain,
subject: Diagnostic Exercises
  topic: section
creator: Carmina Migoni
creator: Michelle Rubio Sánchez
creator: Francisco A. Uzal
creator: Javier Asin
creator: Eileen Henderson
rights: Copyright (c) 2025 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2025-12-22
publication date: 2025-12-22
starting page: e018S122
ending page: e018S122
doi: 10.24070/bjvp.1983-0246.018S122

Equine Nocardioform Placentitis
type: item
description: Clinical History: A placenta from a mare following parturition was submitted for evaluation. The foal was reported to be unusually weak at birth but otherwise grossly normal with no clinical abnormalities. The mare was treated with antibiotics prior to parturition.
subject: Diagnostic Exercises
  topic: section
creator: Cassandra M. Powers
rights: Copyright (c) 2025 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2025-12-22
publication date: 2025-12-22
starting page: e018S121
ending page: e018S121
doi: 10.24070/bjvp.1983-0246.018S121

Parvovirosis in a margay (Leopardus wiedii)
type: item
description: Clinical History: Multiple tissue samples from various organs of a juvenile margay (Leopardus wiedii) were collected during necropsy. Before death, the animal exhibited severe weakness, vomiting, diarrhea, dehydration, abdominal discomfort, and marked leukopenia.
subject: Diagnostic Exercises
  topic: section
creator: Juan Diego Hidalgo Dittel
creator: Roger Such Basiana
creator: Laura G. Bass
creator: Gaby Dolz-Wiedner
creator: Antony Solórzano-Morales
creator: Roberto W. I. Olivares
rights: Copyright (c) 2025 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2025-12-22
publication date: 2025-12-22
starting page: e018S120
ending page: e018S120
doi: 10.24070/bjvp.1983-0246.018S120

Congenital goiter in sibling goat kids
type: item
description: History: Nine, adult, female Boer goats were presented to the University of California, Davis, Veterinary Medical Teaching Hospital for timed artificial insemination. To synchronize their estrous cycles, the owner gave each doe 7.5 mg dinoprost tromethamine (Lutalyse®) intramuscularly 12 hours prior to presentation and 24 hours prior to removal of the doe’s progesterone controlled intravaginal drug release device (EAZI-BREED™ CIDR®). Approximately 52 hours after prostaglandin administration, one of the does delivered two live kids, one female and one male, without complication. The neonates were unexpectedly premature by approximately two weeks. Both kids exhibited bilateral, smooth swelling at the laryngotracheal junction and generalized alopecia. Both kids were euthanized, and they were sent to the UC Davis Anatomic Pathology Service for necropsy.
subject: Diagnostic Exercises
  topic: section
creator: M Kevin Keel
creator: Elizabeth C. Rose
creator: Celeste M Morris
rights: Copyright (c) 2025 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2025-12-22
publication date: 2025-12-22
starting page: e018S119
ending page: e018S119
doi: 10.24070/bjvp.1983-0246.018S119

Ultimobranchial body cyst in a neonatal goat
type: item
description: History and clinical signs: A two-day-old black and white pygmy goat kid was presented to the California Animal Health and Food Safety Laboratory – San Bernardino Branch, for euthanasia and necropsy with a history of what appeared to be a fluctuant mass under the skin of the ventral side of the neck. On clinical examination, an approximately 10 cm in diameter, fluid-filled structure was palpated under the skin along the ventral aspect of the neck (Fig 1). The goat kid had pronounced dyspnea and distress particularly during palpation. Euthanasia was performed with an overdose of barbiturate and a full necropsy was performed.
subject: Diagnostic Exercises
  topic: section
creator: Tatiana Paz
creator: Eileen Henderson
creator: Javier Asín
creator: Francisco A. Uzal
rights: Copyright (c) 2025 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2025-12-22
publication date: 2025-12-22
starting page: e018S118
ending page: e018S118
doi: 10.24070/bjvp.1983-0246.018S118

Strangles and infarctive purpura hemorrhagica in a horse
type: item
description: History: A euthanized 23-year-old Quarter Horse gelding with an ~1-week history of fever (102.5°F), clear nasal discharge and lymphadenopathy was euthanized.
subject: Diagnostic Exercises
  topic: section
creator: Carolina Matto
creator: Carmina Migoni
creator: Michelle Rubio
creator: Akinyi Nyaoke
creator: Eileen Henderson
creator: Francisco A. Uzal
creator: Javier Asin
rights: Copyright (c) 2025 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2025-12-22
publication date: 2025-12-22
starting page: e018S117
ending page: e018S117
doi: 10.24070/bjvp.1983-0246.018S117

Heartworm in a southern tiger cat (Leopardus guttulus) in Santa Catarina, Brazil
type: item
description: <span class="TextRun SCXW94845773 BCX8" lang="EN-US" style="-webkit-user-drag: none; -webkit-tap-highlight-color: transparent; margin: 0px; padding: 0px; user-select: text; font-variant-ligatures: none !important; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: justify; text-indent: 37px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; color: #0e101a; font-size: 12pt; line-height: 36px; font-family: 'Times New Roman', 'Times New Roman_EmbeddedFont', 'Times New Roman_MSFontService', serif;" xml:lang="EN-US" data-contrast="none">Heartworm disease, caused by <span class="TextRun SCXW94845773 BCX8" lang="EN-US" style="-webkit-user-drag: none; -webkit-tap-highlight-color: transparent; margin: 0px; padding: 0px; user-select: text; font-variant-ligatures: none !important; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: justify; text-indent: 37px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; color: #0e101a; font-size: 12pt; font-style: italic; line-height: 36px; font-family: 'Times New Roman', 'Times New Roman_EmbeddedFont', 'Times New Roman_MSFontService', serif;" xml:lang="EN-US" data-contrast="none">Dirofilaria immitis<span class="TextRun SCXW94845773 BCX8" lang="EN-US" style="-webkit-user-drag: none; -webkit-tap-highlight-color: transparent; margin: 0px; padding: 0px; user-select: text; font-variant-ligatures: none !important; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: justify; text-indent: 37px; text-transform: none; widows: 2; …
subject: Articles
  topic: section
subject: heart
  topic: keywords
subject: Dirofilaria immitis
  topic: keywords
subject: wild cat
  topic: keywords
subject: microfilaria
  topic: keywords
subject: necropsy
  topic: keywords
creator: Bruna Tizoni Guedine
creator: Jean Carlo Olivo Menegatt
creator: Alexandre de Oliveira Tavela
creator: Francielli Cordeiro Zimmermann
creator: Adriano Tony Ramos
rights: Copyright (c) 2025 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2025-12-22
publication date: 2025-12-22
starting page: e018020
ending page: e018020
doi: 10.24070/bjvp.1983-0246.018020

Clinicopathologic features, tumor staging, and intratumoral inflammation in canine oral non-tonsillar squamous cell carcinomas
type: item
description: <span class="NormalTextRun SCXW165922511 BCX8" style="-webkit-user-drag: none; -webkit-tap-highlight-color: transparent; margin: 0px; padding: 0px; user-select: text; color: #000000; font-family: 'Times New Roman', 'Times New Roman_EmbeddedFont', 'Times New Roman_MSFontService', serif; font-size: 16px; font-style: normal; font-variant-ligatures: none; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: justify; text-indent: 48px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">Oral cancers, such as squamous cell carcinomas, constitute important diseases in veterinary patients, as they are <span class="NormalTextRun SCXW165922511 BCX8" style="-webkit-user-drag: none; -webkit-tap-highlight-color: transparent; margin: 0px; padding: 0px; user-select: text; color: #000000; font-family: 'Times New Roman', 'Times New Roman_EmbeddedFont', 'Times New Roman_MSFontService', serif; font-size: 16px; font-style: normal; font-variant-ligatures: none; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: justify; text-indent: 48px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">frequently<span class="NormalTextRun SCXW165922511 BCX8" style="-webkit-user-drag: none; -webkit-tap-highlight-color: transparent; margin: 0px; padding: 0px; user-select: text; color: #000000; font-family: 'Times New Roman', 'Times New Roman_EmbeddedFont', 'Times New Roman_MSFontService', serif; font-size: 16px; font-style: normal; font-variant-ligatures: none; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: justify; text…
subject: Articles
  topic: section
subject: oncology
  topic: keywords
subject: cancer
  topic: keywords
subject: tumor infiltration
  topic: keywords
subject: neutrophils
  topic: keywords
subject: dog
  topic: keywords
creator: Hugo Enrique Orsini Beserra
creator: Giovana Pedro
creator: Renée Laufer Amorim
rights: Copyright (c) 2025 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2025-12-22
publication date: 2025-12-22
starting page: e018019
ending page: e018019
doi: 10.24070/bjvp.1983-0246.018019

Primary extraskeletal osteosarcoma of the omentum in a young dog
type: item
description: <span class="TextRun SCXW98606293 BCX8" lang="EN-US" style="-webkit-user-drag: none; -webkit-tap-highlight-color: transparent; margin: 0px; padding: 0px; user-select: text; font-variant-ligatures: none !important; color: #000000; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: justify; text-indent: 37px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; font-size: 12pt; line-height: 36px; font-family: 'Times New Roman', 'Times New Roman_EmbeddedFont', 'Times New Roman_MSFontService', serif;" xml:lang="EN-US" data-contrast="none">Extraskeletal osteosarcoma (EOSA) is a rare and aggressive mesenchymal neoplasm in dogs, primarily affecting older animals, <span class="TextRun SCXW98606293 BCX8" lang="EN-US" style="-webkit-user-drag: none; -webkit-tap-highlight-color: transparent; margin: 0px; padding: 0px; user-select: text; font-variant-ligatures: none !important; color: #000000; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: justify; text-indent: 37px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: #ffffff; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; font-size: 12pt; line-height: 36px; font-family: 'Times New Roman', 'Times New Roman_EmbeddedFont', 'Times New Roman_MSFontService', serif;" xml:lang="EN-US" data-contrast="none">with the spleen being the most common site of involvement<span class="TextRun SCXW98606293 BCX8" lang="EN-US" style="-webkit-user-drag: none; -webkit-tap-highlight-color: transparent; margin: 0px; padding: 0px; user-select: text; font-variant-ligatures: none !important; color: #000000; font-style: normal; fo…
subject: Articles
  topic: section
subject: canine osteosarcoma
  topic: keywords
subject: histopathology
  topic: keywords
subject: immunohistochemistry
  topic: keywords
subject: metastasis
  topic: keywords
subject: RUNX2
  topic: keywords
creator: João Pedro Sanches de Ávila
creator: André Gustavo Alves Holanda
creator: Caroline Cristine Ferreira Mazula
creator: João Antônio Ulhôa Oliveira
creator: Fernanda Gosuen Gonçalves Dias
creator: Pâmela Rodrigues Reina Moreira
creator: Denner Santos dos Anjos
rights: Copyright (c) 2025 Brazilian Journal of Veterinary Pathology https://creativecommons.org/licenses/by/4.0
date: 2025-12-22
publication date: 2025-12-22
starting page: e018018
ending page: e018018
doi: 10.24070/bjvp.1983-0246.018018