Figure 3 (a) Postcontrast CT chest study of a young male patient showing middle mediastinal homogenous, thin-walled and cystic lesion. (b) FOB-TBNA while negative suction brought milky fluid. (c) Bronchoscopic view while the needle is inserted anterior to tracheal carina. (d) Aspirated fluid collected in a bottle. All findings were suggestive of bronchogenic cyst. CT, computed tomography; TBNA, transbronchial needle aspiration.