v.14, n.1, 8 – Bilateral auricular aneurysm with intact pericardial sac in a dog

v.14, n.1, 8 – Bilateral auricular aneurysm with intact pericardial sac in a dog

v.14, n.1, 8

Case Report

Bilateral auricular aneurysm with intact pericardial sac in a dog

Mayane Faccin, Mônica Regina de Matos, João Pedro Cavasin, Ana Cláudia Bochi, Mariana Pavelski, Aline de Marco Viott

Abstract

A nine-year-old, male, Pekingese dog was presented with a history of dyspnea, lethargy, syncope, polyuria, polydipsia, and selective appetite over two years. When the clinical signs first began, a radiographic exam revealed a radiopaque mass in the cranial mediastinum. An adequate treatment was not performed and the dog was presented to the hospital with severe tachycardia, dyspnea, and tachypnea, and died during physical examination. On necropsy, the heart presented bilateral auricular aneurysms. The pericardial sac was intact, and no other defects were found within the heart. Microscopically, the cardiomyocytes were marked degenerated and proliferation of connective tissue. This is the first case report of a bilateral auricular aneurysm with intact pericardial sac in a dog.

Key words: auricular dilation, cardiomyopathy, congenital, cardiac fibrosis

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DOI: 10.24070/bjvp.1983-0246.v14i1p46-49