Fig. 4From: Retrograde venous invasion in renal cell carcinoma: a gross diagnosis Case 4. A 75-year-old female patient with clear cell carcinoma. A strikingly hemorrhagic tumor in mid pole. The tumor involves main renal vein, renal sinus veins and satellite nodules are seen in upper and lower lobes along corticomedullar transition and between renal pyramidsBack to article page