A case of renal cell carcinoma with bone and lymph node metastases.

We present a rare case of renal cell carcinoma (RCC) with a metastatic, mainly osteoblastic lesion of the skull and spread to the lymph nodes. Renal tumors are often associated with bone metastases; these are most often of the osteolytic type, while osteoblastic metastases are extremely rare. In the case presented here, the primary metastasis was a large osteoblastic lesion of the skull that spread to the lymph nodes.