At the right renal midpole is a wedge-shaped, hypodensity with associated fat stranding. No hydronephrosis. Liver, gallbladder, spleen, adrenal glands, left kidney and pancreas all have a normal appearance. Appendix is normal. Bowel is unremarkable. No free fluid or free gas. Prominent para- aortic lymph nodes. Lung bases are clear. No suspicious bone lesion.