All are features of hypernephroma except:
RENAL CELL CARCINOMA (AKA gravitz tumor, hypernephroma, internist's tumor, radiologist's tumor) - More common in males, in 6th and 7th decade - Tumor usually involve upper pole Most common site of distant metastasis are lungs (cannon ball deposits and pulsatile osteolytic secondaries in bone>liver>brain) Characteristic feature of RCC is tendency to invade renal vein
Kidney and ureter
May invade renal vein
Lower pole involvement
More common in males
Cannon ball secondaries are seen
Lower pole involvement