Introduction Caseous calcified mitral annulus is a non-neoplastic cardiac lesion considered to be a variant of mitral annular calcification that should be suspected when heart masses are detected by echocardiogram, chest x-ray or other radiologic studies.– The majority of the patients is asymptomatic, but signs and symptoms of mitral regurgitation, systemic embolization and atrioventricular blocks have been described.³ The diagnosis is confirmed by anatomopathologic examination. The prognosis is good. Here, we present a caseous calcification of the mitral annulus case […]