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submitted by rocmed(0),

Can't renal cell carcinoma cause invasion of the renal artery, obstructing blood flow (resulting in a bruit), thereby upregulating RAAS and increasing blood pressure?

rocmed  And isn't smoking also a risk factor for RCC? +  
lispectedwumbologist  It is but RCC tends to present later in life (6th or 7th decade). In a 55 year old smoker, atherosclerosis of the renal artery is am much more common cause of bruits +  
seagull  Hypertension is also a risk factor of an atherosclerosis leading to more inflammation. Eventually dilation (aneurysm) might occur... if im wrong then ignore this +1  
seagull  Hypertension is also a risk factor of an atherosclerosis leading to more inflammation. Eventually dilation (aneurysm) might occur... if im wrong then ignore this +  
illogical  Renal Cell Carcinoma has a tendency to invade the Left Renal **Vein** (Pg 134, Pathoma 2018). Thus it has an association w/ obstructed drainage of the Left Spermatic Vein leading to a varicocele. Renal artery stenosis is more commonly due to atherosclerosis (almost 85-90%) or fibromuscular dysplasia. +9  
ratadecalle  With RCC and renal vein invasion you would see B/L lower edema and venous collaterals in the abd wall (Uworld). Also he has a severe headache and confusion which are signs of a hypertensive emergency. +