Fig. 3

Renal Metastasis from Primary Lung Adenocarcinoma from Case 5

(a) CT scan showing the right lobe nodule; (b) CT scan showing the isolated left kidney metastasis; (c) The tumor cells were from lung (H&E, ×200). (d) The tumor cells were from kidney (H&E, ×200). Immunohistochemical studies revealed that the tumor cells were positive for NapsinA(e, ×200) and TTF-1(f, ×200), but PAX-8 was negative (g, ×200)