A First Feline Case of Cardiomyopathy Associated with Hyperthyroidism Due to Thyroid Adenoma in Japan

Miyamoto T., Kato M., Kuwamura M., et al.

Fel Prac, 1998. 26(5): p.6-9.


A 13-year-old castrated male Persian cat was presented with depression, anorexia, and weight loss. Radiographic and electrocardiographical examinations revealed cardiomegaly and sinus tachycardia. Cardiac ultrasonography indicated hypertrophy of the left ventricular free wall and interventricular septum, and left atrial enlargement. Elevated serum T3 andT4 levels were observed, and thyroid adenoma was confirmed by histopathology. Based on these findings, the cat was diagnosed as cardiomyopathy associated with hyperthyroidism Induced by thyroid tumor. This report describes the first feline case of cardiomyopathy associated with hyperthyroidism in Japan.