CT - CT Chest
Mass within the superior segment of the right lower lobe likely represents a primary lung cancer. The smaller lesion within the lateral segment of the right middle lobe may represent a second primary or alternatively a metastatic focus. Intralobular septal thickening at the right base raises the possibility of lymphangitis carcinomatosis. Alternatively, post-obstructive infection could also have a similar appearance. Extensive mediastinal nodal metastases involving the right hilum, subcarinal, right paratracheal and prevascular nodal stations.