Small cell carcinoma of the lung most often presents roentgenographically as a hilar mass with mediastinal extension. This study is mainly to analyse the radiological manifestation of small cell cancer of the lung and observe the specific roentgenological findings. Histologically proven 21 cases of small cell carcinoma of the lung during the last 7 years were reviewed with plain chest film and clinical data. The following results were obtained : 1. Male to female sex ratio was 6 : 1. Incidence was most common in 6th decade as 48%. 2. About 80% were smoker and among these 90% were moderate to heavy smoker. 3. Cardinal symptoms at diagnosis in the order of frequence were cough, chest pain & hemoptysis. 4. Of the 21 cases, most common radiological finding was that of hilar prominece or perihilar mass (76%). In 33% of the patients roentgenographic evidence of bronchial obstruction were observed. In 38%, mediastinal widening or mass was observed. Of the 21 patients, none has the fi ding of cavitary pulmonary mass or peripheral pulmonary nodule.