title: FDG uptake in sacroiliac joint due to osteitis condensans ilii shown on PET/CT in a patient with breast cancer: the value of coregistered CT in avoiding misinterpretation.
abstract: A 56-year-old woman with breast cancer underwent FDG PET/CT at follow-up. The PET images showed increased FDG uptake along right sacroiliac joint. The coregistered CT images showed diffuse sclerosis around the sacroiliac joints, but no bony destruction, periarticular erosion, or joint space narrowing. She had been complaining of intermittent lower back pain since her last pregnancy. The radiologic pictures and history of postpartum back pain were considered as typical characteristics for osteitis condensans ilii. This case reminds us that careful inspection of the coregistered CT images is important to avoid potential misinterpretation because of osteitis condensans ilii.
authors.affiliation: Department of Hemato-oncology, Tainan Municipal Hospital, Tainan, Taiwan.
authors.forename: Yang-Cheng
authors.initials: YC
authors.lastname: Lee
authors.forename: Kuan-Yung
authors.initials: KY
authors.lastname: Chen
authors.forename: Jainn-Shiun
authors.initials: JS
authors.lastname: Chiu
authors.forename: Chia-Hung
authors.initials: CH
authors.lastname: Kao
authors.forename: Guang-Uei
authors.initials: GU
authors.lastname: Hung
mesh_terms: D001943:Breast Neoplasms / Q000150:complications*; D003951:Diagnostic Errors; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008875:Middle Aged; D064847:Multimodal Imaging; D010000:Osteitis / Q000150:complications* / Q000000981:diagnostic imaging*; D049268:Positron-Emission Tomography; D012446:Sacroiliac Joint / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed
chemical_list: D019788:Fluorodeoxyglucose F18