Fig. 4
From: Role of CT in differentiation between subtypes of lung cancer; is it possible?
Four different tumors in the current study. a Small cell carcinoma appearing as a hilar mass showing internal necrosis, encasing the main bronchus with direct invasion of the mediastinum. b Lung sarcoma manifested as low attenuation mass lesion occupying the right hemithorax with the involvement of the mediastinum and pleura, the right lung is seen collapsed (arrow) with the mediastinum is seen displaced to the contralateral side. c Large cell carcinoma is shown as a lobulated soft-tissue attenuation mass lesion with loss of clear line of cleavage with the mediastinum and sizable mediastinal nodes. d Carcinoid tumor is shown as a well-defined homogeneous lesion with inseparability from the pleura extending to the hilum with infiltration of the middle lobe bronchus (not shown)