title: SPECT/CT imaging of retroperitoneal extraskeletal osteosarcoma.
abstract: The condition of a 52-year-old man was diagnosed with unresectable retroperitoneal extraskeletal osteosarcoma. SPECT/CT demonstrated a retroperitoneal extraskeletal osteosarcoma adjacent to the right upper ureter with large calcifications and increased Tc-MDP accumulation. Multiple hepatic capsular, renal fascial, and peritoneal metastases were noted. Four months later, multiple peritoneal metastases were noted at the second-look surgery. A histopathologic examination confirmed osteosarcoma.
authors.affiliation: From the Department of Nuclear Medicine, The First Affiliated Hospital of Henan University of Science and Technology, Luoyang, Henan, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Hu
authors.forename: Yan
authors.initials: Y
authors.lastname: Liu
authors.forename: Lixia
authors.initials: L
authors.lastname: Cheng
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Xiaozheng
authors.initials: X
authors.lastname: Cao
mesh_terms: D001859:Bone Neoplasms / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D064847:Multimodal Imaging; D012516:Osteosarcoma / Q000000981:diagnostic imaging*; D012187:Retroperitoneal Space / Q000000981:diagnostic imaging; D015899:Tomography, Emission-Computed, Single-Photon; D014057:Tomography, X-Ray Computed