title: False positive bone scan in bone tumors of the lower limb.
abstract: When examined using bone scanning agents, eight out of nine patients with lower limb malignancy, and neither of two affected in the upper limb showed a pathologic focus of isotope uptake in an area distal to the tumor. On pathologic examination the positive findings proved false. Such misleading results were found to be avoidable if a tumor-seeking agent instead of a bone scanning one is used.
mesh_terms: D000293:Adolescent; D000328:Adult; D001761:Bleomycin; D001859:Bone Neoplasms / Q000000981:diagnostic imaging*; D002648:Child; D003037:Cobalt Radioisotopes; D005189:False Positive Reactions; D005260:Female; D005710:Gallium Radioisotopes; D006801:Humans; D007866:Leg / Q000000981:diagnostic imaging*; D016403:Lymphoma, Large B-Cell, Diffuse / Q000000981:diagnostic imaging; D008297:Male; D012516:Osteosarcoma / Q000000981:diagnostic imaging; D010710:Phosphates; D011877:Radionuclide Imaging; D012509:Sarcoma / Q000000981:diagnostic imaging*; D012512:Sarcoma, Ewing / Q000000981:diagnostic imaging; D013667:Technetium
chemical_list: D003037:Cobalt Radioisotopes; D005710:Gallium Radioisotopes; D010710:Phosphates; D001761:Bleomycin; D013667:Technetium