title: Calcification in an intramyocardial mass lesion: isolated calcification of an accessory papillary muscle in a patient with mitral prolapse.
abstract: Cardiac catheterization in a 50-year-old male with mitral leaflet prolapsed revealed a filling defect with calcification in the high posterolateral wall. At surgery, the lesion was found to be a calcified accessory papillary muscle with thickened, calcified chordae to the posterior leaflet. The calcification and fibrosis were felt to be due to friction lesions between elongated chordae and the endocardium. Intracardiac calcification in mitral leaflet prolapsed may suggest calcified mitral apparatus.
mesh_terms: D002114:Calcinosis / Q000150:complications / Q000175:diagnosis*; D002815:Chordae Tendineae; D006349:Heart Valve Diseases / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D008943:Mitral Valve; D010210:Papillary Muscles / Q000473:pathology; D011391:Prolapse