C. T. guided fine needle aspiration cytology of localised lung lesions : cytological versus radiological correlation

Introduction Lung lesions include a large variety of benign and malignant conditions. Lung carcinoma is the most common carcinoma in the world today, comprising 12.6% of all the cancers and 17.8% of all the [1] cancer deaths. Benign lesions include inflammatory conditions comprising of acute Inflammatory conditions, granulomatous inflammation, specific infections ( Aspergillus, Phycomycetes, Fusarium , Candida ) , reparative and reactive changes, pneumoconiosis, pulmonary infarct, congenital bronchogenic cyst, nodular amyloidosis and wegener's granulomatosis. Neoplastic lesions includes primary and secondary neoplasms. Primary neoplasm includes squamous cell carcinoma, adenocarcinoma, lepidic adenocarcinoma, small cell carcinoma, large cell carcinoma, carcinoid tumour, sarcomatoid carcinoma and adenosquamous carcinoma. Other rare primary tumors includes pulmonary blastoma and pulmonary carcinosarcoma.