Annals of Nuclear Medicine

, Volume 22, Issue 3, pp 215–219

Extrapancreatic F-18 FDG accumulation in autoimmune pancreatitis


    • Department of RadiologyIbaraki Prefectural Central Hospital
  • Toshiyuki Okumura
    • Department of RadiologyIbaraki Prefectural Central Hospital
  • Yasukazu Shioyama
    • Department of RadiologyIbaraki Prefectural Central Hospital
  • Jyouji Imura
    • Department of PathologyIbaraki Prefectural Central Hospital
Case Report

DOI: 10.1007/s12149-007-0107-y

Cite this article as:
Sato, M., Okumura, T., Shioyama, Y. et al. Ann Nucl Med (2008) 22: 215. doi:10.1007/s12149-007-0107-y


We report two cases of autoimmune pancreatitis (AIP) in which fluorine-18 fluorodeoxyglucose (FDG) showed moderate accumulation in the pancreas, as well as in bilateral submandibular glands and in multifocal lymph nodes. FDG positron emission tomography (PET)/computed tomography (CT) is a useful diagnostic tool to assess the extrapancreatic lesions of AIP, which is a recently proposed new clinicopathological entity named immunoglobulin G4 (IgG4)-related systemic disease. Recognition of the FDG-PET/CT findings of IgG4-related sclerosing disease is crucial to avoid unnecessary surgery or other intervention because of similarities to malignant lymphoma or malignant tumor with multiple lymph node metastases.


Autoimmune pancreatitis (AIP)Sclerosing sialoadenitisIgG4-related sclerosing diseasePositron emission tomography (PET)Fluorine-18 fluorodeoxyglucose (F-18 FDG)

Copyright information

© The Japanese Society of Nuclear Medicine 2008