Right-ventricular hemangioma causing serious outflow-tract obstruction.

A 28-year-old woman had a partially nonexertional dyspnea and a murmur of pulmonary stenosis. Echocardiography and magnetic resonance imaging revealed a mass causing a nearly completely pulmonary outflow-tract obstruction. The mass was successfully resected and the pathological diagnosis of a mixed capillary and cavernous polypoid hemangioma was made. This case represents one of the very rare cases of a right-ventricular hemangioma in adults in which obstruction of the outflow-tract was initially evident. Non-invasive diagnosis and an exploratory operation with resection is the procedure of choice.