A systematic approach is necessary to ensure diligent evaluation of suspected renal masses, given the large differential diagnosis and considerable overlap between benign and malignant renal lesionsIncreased use of imaging has increased the detection of renal lesions most of which are simple cysts. Also a greater percentage of small renal lesions have been noted which has changed the therapeutic strategy towards renal lesions.
CT and MRI findings are fairly classical for renal tumors. Initial diagnosis with IV urography or ultrasound may require further confirmatory testing.
Magnetic Resonance Imaging