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A prospective and retrospective hospital based descriptive study was done to know the pathological spectrum of thoracic lesions and to correlate the radiological findings with cytological findings obtained from computed tomography guided percutaneous transThoracic fine needle aspiration of lung and mediastinum. The clinical, radiological and cytological data of 60 patients were studied who underwent CT guided FNAC from January 2008-June 2009.

Diagnostic accuracy of FNAC is more than 90%. Out of 60 cases 19 cases are non malignant and 41 cases were malignant. The Diagnostic sensitivity of Bronchogenic carcinoma is 84% and Specificity is 76%. Male to Female ratio is 2.3: 1. Majority of cases were seen in 5th and 6th decade. Apart from Non small cell carcinoma cases like small cell carcinoma, Carcinoid tumor, Chondroid hamartoma, SFT were also noted. Cytological diagnosis is correlated with cell block sections in available cases. Post procedural complications like Pneumothorax, Pulmonary hemorrhage and hemoptysis were noted in few cases.