title: Bone and gallium scintigraphy in sacral chordoma. Report of four cases.
abstract: Bone scintigraphy with Tc-99m HMDP and gallium scintigraphy were evaluated in four patients with a primary sacrococcygeal chordoma. All lesions showed a photon-deficient or cold lesion corresponding to the tumor on bone scintigraphy, with no abnormal accumulation clearly observed on gallium scintigraphy. These findings led the authors to conclude that a midline sacrococcygeal tumor showing reduced uptake or a cold lesion on bone scintigraphy and no increased accumulation on gallium scintigraphy could be a chordoma rather than the malignant neoplasm suspected in this region.
authors.affiliation: Department of Radiology, Yamaguchi University School of Medicine, Ube, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Suga
authors.forename: N
authors.initials: N
authors.lastname: Tanaka
authors.forename: T
authors.initials: T
authors.lastname: Nakanishi
authors.forename: H
authors.initials: H
authors.lastname: Utsumi
authors.forename: N
authors.initials: N
authors.lastname: Yamada
mesh_terms: D000328:Adult; D000368:Aged; D001859:Bone Neoplasms / Q000000981:diagnostic imaging*; D002817:Chordoma / Q000000981:diagnostic imaging*; D002951:Citrates; D019343:Citric Acid; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011877:Radionuclide Imaging; D012445:Sacrococcygeal Region; D012447:Sacrum; D013669:Technetium Tc 99m Medronate / Q000031:analogs & derivatives
chemical_list: D002951:Citrates; D019343:Citric Acid; C024226:technetium Tc 99m hydroxymethylene diphosphonate; D013669:Technetium Tc 99m Medronate