Autoimmune Pancreatitis with Massive Ascites and Multiple Pancreatic Cysts Successfully Treated with Prednisolone

Koyo Kido; Reiko Yamada; Yuri Maegawa; Takamitsu Tanaka; Yuhei Umeda; Yohei Ikenoyama; Hiroki Yukimoto; Akina Shigehuku; Junya Tsuboi; Misaki Nakamura; Masaki Katsurahara; Yasuhiko Hamada; Kyosuke Tanaka; Noriyuki Horiki; Hayato Nakagawa

doi:10.2169/internalmedicine.0003-22

CASE REPORTS

Autoimmune Pancreatitis with Massive Ascites and Multiple Pancreatic Cysts Successfully Treated with Prednisolone

Koyo Kido, Reiko Yamada, Yuri Maegawa, Takamitsu Tanaka, Yuhei Umeda, Yohei Ikenoyama, Hiroki Yukimoto, Akina Shigehuku, Junya Tsuboi, Misaki Nakamura, Masaki Katsurahara, Yasuhiko Hamada, Kyosuke Tanaka, Noriyuki Horiki, Hayato Nakagawa

Author information

Koyo Kido
Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Japan
Reiko Yamada
Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Japan
Yuri Maegawa
Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Japan
Takamitsu Tanaka
Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Japan
Yuhei Umeda
Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Japan
Yohei Ikenoyama
Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Japan
Hiroki Yukimoto
Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Japan
Akina Shigehuku
Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Japan
Junya Tsuboi
Department of Endoscopy, Mie University Graduate School of Medicine, Japan
Misaki Nakamura
Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Japan
Masaki Katsurahara
Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Japan
Yasuhiko Hamada
Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Japan
Kyosuke Tanaka
Department of Endoscopy, Mie University Graduate School of Medicine, Japan
Noriyuki Horiki
Department of Endoscopy, Mie University Graduate School of Medicine, Japan
Hayato Nakagawa
Department of Gastroenterology and Hepatology, Mie University Graduate School of Medicine, Japan

Keywords: autoimmune pancreatitis, pancreatic cysts, ascites, steroids

JOURNAL OPEN ACCESS

2023 Volume 62 Issue 9 Pages 1299-1304

DOI https://doi.org/10.2169/internalmedicine.0003-22

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Abstract

A 64-year-old man with a history of diabetes and gallstones was admitted to our institution with suspected pancreatic malignancy. Computed tomography (CT) revealed multiple pancreatic cysts and massive ascites, and endoscopic ultrasonography (EUS) revealed a 28×27-mm hypoechoic mass in the pancreatic head. An EUS-guided fine-needle aspiration biopsy was performed, and there were no malignant findings. Based on the test results and imaging findings, type 1 autoimmune pancreatitis was suspected. The patient was administered 30 mg of prednisolone daily. After 11 days, CT revealed that the pancreatic cysts and ascites had reduced in size.

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