Double orifice mitral valve with flail leaflet: a transoesophageal echocardiographic examination.

We describe a case of double orifice mitral valve and a flail leaflet in a 54-year-old man. This rare congenital abnormality was disclosed through the discovery of a murmur. The transoesophageal approach clearly showed two approximately equal orifices with multiple papillary muscles. Colour Doppler echocardiography showed a moderate mitral regurgitation due to the prolapse of the posterior leaflet of the anteromedial orifice. No other abnormality was associated. Transoesophageal echocardiography is useful to analyse as well the anatomy as the functional aspect of the mitral apparatus in this particular case of congenital disease.