Intrapericardial bronchogenic cyst with marked production of antigen CA 19-9 ; a case report

Abstract

A 33-year-old female was admitted with cough and chest pain. The chest CT scan showed a 10cm cyst of anterior mediastinum. The level of CA19-9 was 12531U/ml in the serum and more than 2.4 ×10⁶U/ml in the cystic fluid. Operative findings revealed that the cyst was intrapericardial and was removed completely. The pathological diagnosis was bronchogenic cyst lined by ciliated epithelium and contained bronchial glands, cartilage, smooth muscle and alveolar structures. Postoperative course was uneventful arid the level of CA19-9 decreased to normal.