[Infected bronchogenic cysts may cause recurrence of bronchial infection].

Bronchogenic cysts are congenital and are caused by an abnormal budding of the endotracheobronchial tree in the first trimester. They are typically located in the thoracic cavity and are often diagnosed in early childhood due to persistent respiratory symptoms such as stridor, cough and dyspnoea. In adults bronchogenic cysts are seldom. Secondary infection is rare. We present two patients with infected bronchogenic cysts. The patients were both treated at the Department of Cardiothoracic Surgery, Rigshospitalet, within a period of six months.