Table of Contents
ISRN Radiology
Volume 2013, Article ID 569489, 8 pages
http://dx.doi.org/10.5402/2013/569489
Review Article

Imaging of Focal Autoimmune Pancreatitis and Differentiating It from Pancreatic Cancer

1Department of General Surgery, Victoria Hospital, Bangalore Medical College and Research Institute, 128 Vijay Doctors Colony, Konanakunte, Bangalore, Karnataka 560062, India
2Department of Radiology, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India

Received 19 November 2012; Accepted 24 December 2012

Academic Editors: H. Kobayashi and A. Sofuni

Copyright © 2013 Abhishek Vijayakumar and Avinash Vijayakumar. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Autoimmune pancreatitis (AIP) is an inflammatory disorder of pancreas. Two types have been identified: the diffuse and the focal or mass forming. Clinical presentation of AIP overlaps that of pancreatic cancer (PC). Sometimes serum IgG4 and CA 19-9 levels are unable to differentiate AIP from PC. Various series have shown that 5%–21% of resected pancreatic masses for suspected malignancy turned out to be AIP. Accurate diagnosis of focal AIP can avoid unnecessary surgeries. This paper elaborates the various imaging modalities useful in differentiating focal AIP from PC.