fluid collections in 41 patients were analyzed : ascites ( seven patients ) , hematoma ( five ) , pancreatic pseudocyst ( four ) , biloma ( two ) , abscess ( four ) , simple renal cyst ( nine ) , hemorrhagic renal cyst ( two ) , hydronephrosis ( four ) , hemonephrosis ( two ) , and cystic metastases ( two ) .
C0268800
simple renal cyst
C0022646
renal