Palpable Abdominal Mass is a Renal Oncocytoma: Not All Large Renal Masses are Malignant

Figure 1

Abdominopelvic CT with IV contrast demonstrates a 14 cm enhancing mass in the right kidney. (a) Axial image shows there was significant enhancement of the solid components of the tumor with finger-like extensions of absent enhancement consistent with necrosis or inflammation. (b) Coronal image demonstrates the enlarged liver that filled all four abdominal quadrants. (c) In sagittal view, the liver is seen to be anteriorly displaced by the large renal mass and to extend down to the right iliac crest.