title: Renal cell carcinoma presenting as a "hot" lesion in kidney, with "cold" metastasis in the skeleton.
abstract: Skeletal scintigraphy is useful for detecting primary renal carcinomas and associated osseous metastatic deposits. Usually, renal masses present as photon-deficient foci, and osseous metastases, as foci of increased response. A case is presented with the unusual combination of focal increased Tc-99m MDP localization to the primary renal cell carcinoma and photopenic osseous metastatic foci. Proposed mechanisms are discussed.
mesh_terms: D000328:Adult; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary*; D002292:Carcinoma, Renal Cell / Q000000981:diagnostic imaging* / Q000556:secondary; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging*; D008297:Male; D011877:Radionuclide Imaging; D013669:Technetium Tc 99m Medronate
chemical_list: D013669:Technetium Tc 99m Medronate