Skip to main content

01.12.2019 | Research | Ausgabe 1/2019 Open Access

Orphanet Journal of Rare Diseases 1/2019

Untypical autoimmune pancreatitis and pancreatic cancer: differential diagnosis experiences extracted from misdiagnose of two cases

Orphanet Journal of Rare Diseases > Ausgabe 1/2019
Gaopeng Li, Ting Liu, Jian Zheng, Wenqin Kang, Jun Xu, Zefeng Gao, Jinfeng Ma
Wichtige Hinweise
Jinfeng Ma and Zefeng Gao contributed equally to this work and should be considered co-corresponding authors

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.



Differentiation between pancreatic cancer (PC) and focal form of autoimmune pancreatitis (AIP) is very challenging, with similar clinical presentations, laboratory results and morphologic imagings of US, CT, EUS, MRI, ERCP, PET-CT. Even serum IgG4 and biopsy sometimes cannot give clear-cut differential accurate diagnostis. Considering the totally different management strategy of the two diseases, accurate diagnostic value is urgently needed to remind the clinicians of the rare diagnosis of untypical AIP among frequent PC-suspected patients.


We present 2 laparotomy cases of AIP that had a high similar characteristic to PC and retrospectively extracted the warning signs that may help select untypical AIP in PC-suspected patients.


We find that mild fluctuating jaundice with abdominal pain, young age, tumor marker of TPS, TPA and diverse results between variable radiological tests can help to differentiate AIP mass from PC, through retrospectively analyzing work-up process of AIP in two patients who underwent laparotomy for suspected PC.
Über diesen Artikel

Weitere Artikel der Ausgabe 1/2019

Orphanet Journal of Rare Diseases 1/2019 Zur Ausgabe