Annals of Nuclear Medicine

, Volume 22, Issue 3, pp 215–219

Extrapancreatic F-18 FDG accumulation in autoimmune pancreatitis

Authors

    • 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

Abstract

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.

Keywords

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