COR-TRIATRIATUM DEXTER IN A DOG

A six-year-old, spayed, female German shepherd dog cross was evaluated for distention of the caudal vena cava. Differential diagnoses includ ed right heart defects and Budd-Chiari type lesions. Radiography, echo cardiography, cardiac catheterization, and angiography demonstrated co r triatriatum dexter. This rare congenital anomaly of ther right atriu m has been described previously in veterinary patients with a right he art failure syndrome. This dog was asymptomatic, therefore, surgical c orrection was not undertaken.