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Updated: Jun 23, 2026

Chronic Thromboembolic Pulmonary Hypertension and Assessment of Right Ventricular Function in the Piglet
Published on: November 4, 2015
Ectopic thyroid carcinoma causing right ventricular outflow tract obstruction in a dog
Shay Bracha1, Isabelle Caron, David L Holmberg
1Department of Small Animals, Veterinary Teaching Hospital, Ontario Veterinary College, Guelph, Ontario N1G 2W1, Canada.
Abstract:
A 9-year-old Bouvier des Flandres was presented with coughing, lethargy, chylous pleural effusion, and a heart murmur. An echocardiogram revealed the presence of an intracardiac mass causing right ventricular outflow tract obstruction. The mass was successfully removed surgically, using total inflow occlusion. Histopathology and immunohistochemistry identified the tumor as an ectopic thyroid carcinoma. The dog was euthanized 11 months after diagnosis at the request of the owner because of nonresolving chylothorax.
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