title: Bone scintigraphy in the initial evaluation of dogs with primary bone tumors.
abstract: Bone scintigraphy was performed as part of an initial diagnostic evaluation of 70 dogs admitted with primary bone tumors during a 2-year period. Tumors involved major long bones of the appendicular skeleton and included 62 osteosarcomas, 6 fibrosarcomas, and 2 chondrosarcomas. All dogs were free of radiographically detectable pulmonary metastases. Bone scintigraphy was not of value in distinguishing among various types of primary tumors. One dog with an ulnar chondrosarcoma had a scintigraphically detectable occult osseous metastasis or synchronous primary tumor, and 1 dog with osteosarcoma had a scintigraphically detectable lymph node metastasis. Pulmonary metastases were not detected scintigraphically. Of the 70 dogs, 44.3% had areas of increased isotope uptake associated with nonneoplastic disease processes.
authors.affiliation: Department of Surgery, Tufts New England Veterinary Medical Center, North Grafton, MA 01536.
authors.forename: J
authors.initials: J
authors.lastname: Berg
authors.forename: C R
authors.initials: CR
authors.lastname: Lamb
authors.forename: M W
authors.initials: MW
authors.lastname: O'Callaghan
mesh_terms: D000818:Animals; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000662:veterinary*; D002813:Chondrosarcoma / Q000000981:diagnostic imaging / Q000662:veterinary; D004283:Dog Diseases / Q000000981:diagnostic imaging*; D004285:Dogs; D005260:Female; D005354:Fibrosarcoma / Q000000981:diagnostic imaging / Q000662:veterinary; D008175:Lung Neoplasms / Q000556:secondary / Q000662:veterinary; D008207:Lymphatic Metastasis; D008297:Male; D012516:Osteosarcoma / Q000000981:diagnostic imaging / Q000662:veterinary; D011877:Radionuclide Imaging; D013669:Technetium Tc 99m Medronate / Q000031:analogs & derivatives
chemical_list: C039597:technetium Tc 99m N-(methylamino)methylene diphosphonate; D013669:Technetium Tc 99m Medronate