title: Physiologic facial muscle uptake on 18F-FDG PET/CT by chewing-like habitual movement in patient with Sjögren syndrome.
abstract: An 84-year-old female patient with known Sjögren syndrome underwent 18F-FDG PET/CT to detect recurrence of uterine cervix cancer. Sjögren syndrome is autoimmune disease that typically produces symptoms of dry mouth and eyes. We report a case of physiologic 18F-FDG uptake on facial muscles by chewing-like habitual movement, which was confused with salivary retention at first. The physiologic FDG uptake in oral cavity and facial muscles has to be reviewed carefully not to be confused with abnormal uptake.
authors.affiliation: From the Department of Nuclear Medicine and Molecular Imaging, Ajou University School of Medicine, Suwon, Kyunggi-do, Republic of Korea.
authors.forename: Dong Hyun
authors.initials: DH
authors.lastname: Lee
authors.forename: Joon-Kee
authors.initials: JK
authors.lastname: Yoon
authors.forename: Seok-Ho
authors.initials: SH
authors.lastname: Yoon
authors.forename: Su Jin
authors.initials: SJ
authors.lastname: Lee
authors.forename: Young-Sil
authors.initials: YS
authors.lastname: An
mesh_terms: D000369:Aged, 80 and over; D003937:Diagnosis, Differential; D005152:Facial Muscles / Q000000981:diagnostic imaging*; D005260:Female; D019788:Fluorodeoxyglucose F18 / Q000493:pharmacokinetics; D006801:Humans; D008409:Mastication; D064847:Multimodal Imaging; D009364:Neoplasm Recurrence, Local / Q000150:complications / Q000000981:diagnostic imaging; D049268:Positron-Emission Tomography; D019275:Radiopharmaceuticals / Q000493:pharmacokinetics; D012859:Sjogren's Syndrome / Q000150:complications / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed; D014594:Uterine Neoplasms / Q000150:complications / Q000000981:diagnostic imaging
chemical_list: D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18