A case report of congenital bronchial diverticulum and bronchogenic cyst presenting with a whistle

Abstract

Congenital diverticula of the left main bronchus are extremely rare in the adult. Bronchial diverticula could act as a reservoir for bronchial secretions and theoretically predispose to repeated respiratory infections. We reported a diverticulum originating from the left main bronchus with recurrent bronchopneumonia and whistling since 15 years of age. Additionally, our case had a paraaortic mediastinal bronchogenic cyst. Physical examination demonstrated whistling in the expiratory phase, which appeared when he was lying on his back or his left side. Flexible bronchoscopy showed a round-shaped lumen of the left main bronchus and bubbling from slits or indentations of the bronchial mucosa in the left main bronchus. Because our patient complained of whistling and history of recurrent bronchopneumonia infection due to bronchial diverticulum, he was operated. To the best of our knowledge, there has been no case of congenital bronchial diverticula localized in the left main bronchus associated with a paraaortic mediastinal bronchogenic cyst in the medical literature.