Background: Small Cell Lung Carcinoma is the most common primary pulmonary neuroendocrine malignancy. Usually patients present with metastatic disease at diagnosis and poor prognostic. Early and accurate diagnosis is important for SCLC. A contrast enhanced chest CT scan is needed to show more clearly the abnormalities detected on chest X-ray so that it can help to diagnose and reveal the extent of mediastinal invasion.   Method: This study was a descriptive type with a retrospective approach. In 30 patients who underwent contrast enhanced chest CT with histopathologically proven SCLC at Dr. Soetomo Hospital, Surabaya. Assessing feature of  SCLC based on age, gender, location, and mediastinal extension (airways and vascular).   Results: Total sample were 30 patient, with 23 male subjects (76,6%) and 7 female subjects ( 23,3%),  The age range of the study was between 31 years and 80 years, with an average age of 62 years, with incidence rate in males being higher than females. it was found that type I 3,3% (n = 1), type II a 13,3% (n = 4), type II b 30% (n = 9), type III a 3,3% (n = 1), III b 23,3% (n = 7), III c 10% (n = 3), type IV 13,3% (n = 4), and type V 3,3% (n = 1). Involvement airways approximately 60% (n=18), either involving one bronchus or 2 or 3 bronchial segments. About 86,6 % (n=26) prove to involve vascular with involvement pulmonal artery in 73,3% (n=22), superior vena cava in 13,3% (n=4) and combination of pulmonal artery and superior vena cava about 6,6% (n =2).    Conclusion: Feature of contras enhanced chest CT scan found in SCLC is hilar mass with ipsilateral mediastinal extension involves the main bronchi with 2 or more segmental bronchi. Vascular involvement particularly the pulmonal artery was found.