[Fistula between right pulmonary artery and left atrium. A case report and review of the literature (author's transl)].

The communication between right pulmonary artery and left atrium is a very uncommon cause of right to left shunt. The 18th case in the world literature and the first case in France is reported here. Normal pressure in the right cavities and in pulmonary artery is evocative. Angiography assesses the diagnosis and precises the place and connections of the fistula. Surgical closing of the fistula must be promptly achieved in order to obviate embolic complications.