A Case of Nonimmune Hydrops Fetalis With a Rare Cardiac Anomaly in a Rhesus Monkey

Abstract
A case of nonimmune hydrops fetalis in a rhesus monkey was identified by ultrasound. The 68‐day fetus exhibited generalized edema, pleural effusion, and mild ascites. Intrauterine fetal demise occurred betweeen 75 and 80 days gestation. Necropsy revealed marked anasarca and a rare cardiac anomaly characterized by aortic and left atrioventricular valve atresia, hypoplasia of the ascending aorta and arch, and absence of the left ventricle.