Subtypes

Hyperechoic renal mass

Hypoechoic renal mass

Isoechoic renal mass

T1-hyperintense renal mass

T2-hyperintense renal mass

T2-hypointense renal mass

T2-intermediate renal mass

May Cause

Displacement of small bowel loops

Extrinsic indentation on duodenum

Increased retrogastric or retroduodenal space