<num>. large left perihilar mass causing mass effect on the trachea and rightward deviation. this was better characterized on outside ct chest performed on <unk>. opacity in the left upper lobe is likely due to postobstructive pneumonia. <num>. consolidations at the left lung base with air bronchograms as well as the right lung base concerning for multi focal pneumonia. <num>. moderate left pleural effusion with mild pulmonary edema.