A Case of Multiple Papillary Fibroelastoma Derived from Both the Mitral Valve and the Chordae

Abstract

Papillary fibroelastoma is a rare, benign heart tumor. We successfully treated a patient with multiple fibroelastomas derived from both the mitral valve and the chordae by surgical excision. A 59-year-old man was admitted to our hospital with a history of myocardial infarction three years before admission. Preoperative transthoracic and transesophageal echocardiograms showed multiple, mobile, rounded cardiac tumors in the left ventricular cavity and the mitral valve. Under cardiopulmonary bypass, we performed prosthetic mitral valve replacement after excising the valve with the tumor. The patient was discharged and remains asymptomatic. Histologic examination of 6 specimens of the excised tumor confirmed the diagnosis of papillary fibroelastoma. When papillary fibroelastoma is diagnosed, surgical treatment must be considered because of the high risk of embolization.