Journal of Medical Cases, ISSN 1923-4155 print, 1923-4163 online, Open Access
Article copyright, the authors; Journal compilation copyright, J Med Cases and Elmer Press Inc
Journal website

Case Report

Volume 4, Number 1, January 2013, pages 29-33

Autoimmune Pancreatitis Presenting as a Focal Pancreatic Mass Mimicking Pancreatic Cancer: A Case Report and Review of the Literature


Figure 1.
Figure 1. Computed tomography of abdomen shows a mass (arrow) in the head of pancreas
Figure 2.
Figure 2. ERCP shows high-grade stricture (thick arrow) in the distal CBD and dilation of the proximal CBD (thin arrow).
Figure 3.
Figure 3. ERCP- Biliary stent (arrow) placed in to the stricture of CBD.


Table 1. Summary of Previously Reported Cases of AIP Mimicking PC
Author (year of report)Patient Age/GenderClinical presentationAssociated medical conditionsPrincipal diagnostic testsSurgery/SteroidsOutcome
Ooi et al 2004 [16]70/FemaleJaundice, Epigastric discomfort, Anorexia, Weight lossDMERCP , EUS, Histopathology of pancreatic tissue (surgery)Surgery (Pancreaticoduodenectomy)Responded to surgery
Bartholomew SV et al 2006 [17]10/MaleJaundiceNoneEUS-FNA, Histopathology of pancreatic tissue (surgery)Surgery (Pancreaticoduodenectomy)Responded to surgery
Efeovbokhan et al 2011 [18]31/MaleEpigastric pain, Jaundice, Weight lossDM, Ulcerative colitisRaised IgG4, ERCP and EUSSteroids onlyResponded to steroids
Lo RS et al 2011 [19]51/MaleJaundice, Itching, Abdominal discomfort, Weight lossDMRaised IgG4, EUS, ERCP & Percutaneous transhepatic cholangiogramSteroids onlyResponded to steroids
Matsumoto et al 2011 [20]79/MaleEpigastric painNoneEUS-FNA, Raised IgG4, Histopathology of pancreatic tissue (surgery)Surgery only (Distal pancreatectomy)Responded to surgery
Present case, 201268/FemaleJaundice, Itching, Weight lossDMERCP, Histopathology of pancreatic tissue (surgery)Surgery (Pancreaticoduodenectomy) and Steroids (later switched to Azathioprine)Responded to surgery and steroids