Combined Papillary Renal Cell Carcinoma with Neuroendocrine Differentiation and Mucinous Tubular and Spindle Cell Carcinoma

Figure 1

(a) Contrast enhanced CT shows a 4.5 cm left upper pole renal mass. (b) Chest CT shows an ill-defined obstructive right perihilar mass, which is inseparable from the extensive mediastinal and hilar lymphadenopathy. There is irregular and nodular inter-/intra-lobular septal thickening predominantly in the right middle and lower lobe with ipsilateral pleural effusion, suggestive of lymphangitic carcinomatosis.

(a)

(b)