This just got in. I got a call from the Animal Doctor after their appointment at the U.P Vet Teaching Hospital. Its confirmed, our adopted dog Trudis has cor pulmonale. This is just what I got so far from the Merck Manuals Online Medical Library:
Cor pulmonale is right ventricular enlargement secondary to a lung disorder that produces pulmonary artery hypertension. Right ventricular failure follows. Findings include peripheral edema, neck vein distention, hepatomegaly, and a parasternal lift. Diagnosis is clinical and by echocardiography. Treatment is directed at the cause.