[Cardiac fibroma in an infant: comparison of echocardiographic findings with cardiac rhabdomyoma].

A 2-month-old boy presented with a cardiac tumor diagnosed by echocardiography and magnetic resonance imaging. An open biopsy specimen was diagnosed histologically as cardiac fibroma. The echocardiographic appearance of fibroma was compared with that of rhabdomyoma complicated by tuberous sclerosis. Fibroma is characterized by a partly high echo density area in the tumor suggesting calcification. Echocardiography is useful in the diagnosis of cardiac fibroma.