Potential Role of Fluorodeoxyglucose Positron Emission Tomography-Computed Tomography in Immunoglobulin G4-related Systemic Disease

We report on a 60-year-old man who presented with painless obstructive jaundice, suspicious of hilar cholangiocarcinoma. Positron emission tomography–computed tomography (PET-CT) demonstrated markedly fluorodeoxyglucose-avid bilateral enlarged submandibular masses and extensive hypermetabolic supra-...

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Bibliographic Details
Published inHong Kong journal of radiology : HKJR = Xianggang fang she ke yi xue za zhi Vol. 16; no. 3; pp. 230 - 234
Main Authors Kung, BT, Wong, CP, Au-yong, TK, Tong, CM
Format Journal Article
LanguageEnglish
Published Hong Kong Hong Kong Academy of Medicine 01.09.2013
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Summary:We report on a 60-year-old man who presented with painless obstructive jaundice, suspicious of hilar cholangiocarcinoma. Positron emission tomography–computed tomography (PET-CT) demonstrated markedly fluorodeoxyglucose-avid bilateral enlarged submandibular masses and extensive hypermetabolic supra- and infra-diaphragmatic lymphadenopathy. Left submandibular excisional biopsy revealed immunoglobulin G4-related systemic disease. Compared with CT or magnetic resonance imaging, fluorine-18 fluorodeoxyglucose PET-CT not only allows whole-body imaging, but also offers metabolic information that helps to reflect disease activity. Fluorine-18 fluorodeoxyglucose PET-CT is a potential useful tool for diagnosis, treatment response assessment, and relapse detection of this systemic disease that is worth further exploration.
ISSN:2223-6619
2307-4620
DOI:10.12809/hkjr1312138