'Quadrileaflet' mitral valve associated with paravalvular aneurysms and complicated by mitral incompetence: a case report of a rare pathology identified by 2-dimensional echocardiography.

A case is reported of a rare pathology involving the left atrioventricular valve with excessively developed scallops in association with subvalvular aneurysms, together with an acquired, probably HIV-related, chronic effusive pericarditis. The possible aetiology is discussed.