Malignant teratoma of the heart.
D001344:Autopsy; D006338:Heart Neoplasms / Q000473:pathology*; D006346:Heart Septum / Q000473:pathology; D006352:Heart Ventricles / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D013724:Teratoma / Q000473:pathology*