aspiration . transbronchial needle bronchogenic cyst using Diagnosis and treatment of a

Mediastinal bronchogenic cysts present problems in diagnosis and management.' 2 A smooth, rounded appearance of the radiological shadow and proximity to central airways suggests the diagnosis. Nevertheless, recent experience with computed tomography indicates that nearly half of the lesions studied appear to be solid in density, and even those that are fluid filled may sometimes be confused with a malignant tumour undergoing central necrosis.3 Compression of vital structures by mediastinal bronchogenic cysts may cause symptoms, especially in young patients. Infection and haemoptysis, though less frequent in mediastinal than in parenchymal bronchogenic cysts, also occur occasionally. Surgical