RADIOLOGY: KIDNEY: Case# 32995: RHABDOID TUMOR - KIDNEY. 50-year-old white male with three-week history of low-grade fever, weight loss, night sweats, and a pathologic fracture of the left hip. Preliminary results of a bone marrow aspiration showed spindle cell sarcoma. Two small hypoattenuation lesions are seen in the liver. One of these lesions is seen in the right posterior segment, and the other lesion is seen in the left medial segment. These lesions are too small to further characterize. The spleen, gallbladder, and pancreas are unremarkable. There is an centrally located, ill-defined, infiltrating left renal mass involving the cortex and medullary tissue. This mass measures approximately 6.0 x 6.0 cm. Two 1.0 x 1.0 cm lymph nodes are seen in the area of the left renal vein. Lymphadenopathy is also seen in the left renal hilum. The right kidney, bowel, and bladder are unremarkable. A 2.0 x 3.0 cm soft tissue mass is seen causing bone destruction of the right pedicle and transverse process of L-3.