[An unusual bronchial foreign body: an hydatid cyst membrane]

Long course bronchopneumonia in child imposes a bronchoscopy to research a foreign body. We report the case of a 4 years old child presenting an unusual foreign body overdraft at rigid tube bronchoscopy indicated for a training pneumonia. It was the membrane of burst pulmonary hydatic cyst obturing left bronchial tree. His total extraction permitted the complete recovery without retention of the membrane.