Simple renal cysts and tumors of the kidney cyst how to identify

B-mode ultrasonography: Simple renal cysts: a circular liquid dark, thin wall, the back wall echo enhanced Tumors of the renal cyst wall irregular, and there are intracapsular of echo, echo enhanced posterior wall C T: Simple renal cysts: a circular low-density areas (close to the density of water, after the intravenous injection of contrast agent does not increase), cystic renal parenchyma interface with smooth, clear and sharp boundary Tumors of the renal cysts; do not have or do not have all the characteristics described in the left column
Allantoic fluid testing: Simple renal cysts: Appearance grass yellow transparent, non-RBC, WBC and atypical cells Tumors of the renal cysts; appearance of a bloody or yellow, cholesterol and increased lactate dehydrogenase levels, the tumor cells can be found
Renal Angiography: Simple renal cysts: a blank round without vascular, peripheral vascular compression Tumors of the renal cysts; can see the rich tumor angiogenesis, and contrast agent in the venous sinus in a concentration of macular shadow.