A HEART comprised of atria and a single ventricle, cor triloculare biatriatum, represents an unusual congenital defect. In her atlas Abbott1 described this as the unique defect in only 13 of 1,000 malformed hearts. Fourteen other hearts in her series had some anomaly in addition to a single ventricle. To date almost 100 patients with this defect have been reported in the medical literature but ...
