著者

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

出版者

The Japanese Society of Internal Medicine

雑誌

Internal Medicine (ISSN:09182918)

巻号頁・発行日

pp.0003-22, (Released:2022-10-05)

参考文献数

9

---

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.