A Case of Autoimmune Pancreatitis Showing Narrowing of the Main Pancreatic Duct after Cessation of Steroid Therapy in the Clinical Course

Shuya Shimizu; Itaru Naitoh; Takahiro Nakazawa; Kazuki Hayashi; Fumihiro Okumura; Katsuyuki Miyabe; Hiromu Kondo; Michihiro Yoshida; Hiroaki Yamashita; Hirotaka Ohara; Takashi Joh

doi:10.2169/internalmedicine.51.7992

CASE REPORTS

A Case of Autoimmune Pancreatitis Showing Narrowing of the Main Pancreatic Duct after Cessation of Steroid Therapy in the Clinical Course

Shuya Shimizu, Itaru Naitoh, Takahiro Nakazawa, Kazuki Hayashi, Fumihiro Okumura, Katsuyuki Miyabe, Hiromu Kondo, Michihiro Yoshida, Hiroaki Yamashita, Hirotaka Ohara, Takashi Joh

Author information

Shuya Shimizu
Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Japan
Itaru Naitoh
Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Japan
Takahiro Nakazawa
Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Japan
Kazuki Hayashi
Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Japan
Fumihiro Okumura
Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Japan
Katsuyuki Miyabe
Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Japan
Hiromu Kondo
Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Japan
Michihiro Yoshida
Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Japan
Hiroaki Yamashita
Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Japan
Hirotaka Ohara
Department of Community-based Medical Education, Nagoya City University Graduate School of Medical Sciences, Japan
Takashi Joh
Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Japan

Keywords: autoimmune pancreatitis, mass-forming, normal pancreatogram, relapse, diagnostic criteria

JOURNAL OPEN ACCESS

2012 Volume 51 Issue 16 Pages 2135-2140

DOI https://doi.org/10.2169/internalmedicine.51.7992

Details

Abstract

Autoimmune pancreatitis (AIP) is characterized by irregular narrowing of the main pancreatic duct (MPD), and narrowing of the MPD is an essential criterion for the diagnosis of focal/segmental AIP according to the Japanese diagnostic criteria 2011. We report a 55-year-old man in whom magnetic resonance imaging showed two masses in the pancreatic head and tail and whose pancreatogram was normal at first. However, the two masses changed into diffuse swelling of the pancreas, and diffuse narrowing of the MPD appeared after the cessation of steroid therapy. Finally, we could diagnose this patient as having AIP according to the Japanese diagnostic criteria.

Corresponding author

Register with J-STAGE for free!