title: Circular mitral annulus calcification.
mesh_terms: D000368:Aged; D002114:Calcinosis / Q000000981:diagnostic imaging*; D005260:Female; D006349:Heart Valve Diseases / Q000000981:diagnostic imaging*; D006801:Humans; D008943:Mitral Valve / Q000000981:diagnostic imaging*; D011859:Radiography