title: FDG PET/CT delayed diuretic imaging technique for differentiating invasive pelvic cancer.
abstract: A 72-year-old woman was diagnosed as having a International Federation of Gynecology and Obstetrics (FIGO II) stage cervical cancer with diffuse uterus corpus invasion without evidence of rectal or urinary bladder invasion as determined by endoscopic examinations. Recently, 2 sharp elevations of serum tumor marker squamous cell carcinoma (SCC) were noted while she was receiving radiation therapy. Therefore, a PET/CT scan was performed using fluorodeoxyglucose (FDG) to restage the cervical cancer. FDG-avid cervical tumor was shown to extend into the anterior uterine wall by use of a diuretic imaging technique, which lowered tracer activity in the bladder and improved visualization of lower pelvic structures, which otherwise might have been obscured by urine-FDG activity.
authors.affiliation: Department of Nuclear Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
authors.forename: Yu-Wen
authors.initials: YW
authors.lastname: Chen
authors.forename: Ming-Yii
authors.initials: MY
authors.lastname: Huang
authors.forename: Po-Nien
authors.initials: PN
authors.lastname: Hou
authors.forename: Chin-Chuan
authors.initials: CC
authors.lastname: Chang
authors.forename: Chuan-Shaio
authors.initials: CS
authors.lastname: Lee
authors.forename: Shi-Long
authors.initials: SL
authors.lastname: Lian
mesh_terms: D000368:Aged; D003952:Diagnostic Imaging / Q000379:methods; D004232:Diuretics / Q000494:pharmacology; D005260:Female; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D008495:Medical Oncology / Q000379:methods; D049268:Positron-Emission Tomography / Q000379:methods*; D019275:Radiopharmaceuticals; D014057:Tomography, X-Ray Computed / Q000379:methods; D002583:Uterine Cervical Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging*
chemical_list: D004232:Diuretics; D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18