Oesophageal duplication cyst: a rare cause of aero-digestive tract obstruction.

A 33-year old man developed gradually worsening dysphagia and dyspnoea over three months. Clinical examination was unremarkable. The chest xray showed a well defined soft tissue density mass in the middle mediastinum. The CT scan showed a well defined, non enhancing, subcarinal, retrocardiac, low density lesion (13.5×12×11.8 cm) compressing the oesophagus. There was no calcification. The possibilities were bronchogenic cyst, oesophageal duplication cyst, neurentic cyst and leiomyoma. There was blood stained fluid when the cyst was aspirated at thoracotomy. The cyst wall was stripped from the oesophagus. Patient made an uneventful recovery.