[A rare cause of exertional dry cough: agenesis of the left pulmonary artery associated with pulmonary hypoplasia]. / Cause rare d'une toux sèche à l'effort: agénésie de l'artère pulmonaire gauche avec hypoplasie pulmonaire.

Agenesis of the left pulmonary artery associated with hypoplasia of the ipsilateral lung is a rare congenital malformation in children; it can be discovered fortuitously or because of the presence of recurrent respiratory infections. Diagnosis is based on thoracic angioscanner. Treatment is essentially conservative. We report the case of a 6-year old child with agenesis of the left pulmonary artery associated with hypoplasia of the ipsilateral lung detected because of exertional dry cough.