Cyst of the mitral valve.
D000328:Adult; D000790:Angiocardiography; D006328:Cardiac Catheterization; D003560:Cysts / Q000175:diagnosis / Q000601:surgery; D003937:Diagnosis, Differential; D004417:Dyspnea / Q000209:etiology; D005260:Female; D006349:Heart Valve Diseases / Q000175:diagnosis; D006801:Humans; D008943:Mitral Valve / Q000601:surgery; D013610:Tachycardia / Q000209:etiology