• Jiayan Li, Qianyi Liu, Zhishang Liu, Chuan Cen, Yuyu Yang, Jianming Ye, Li Xu, Xiji Lu, Dongfeng Chen, and Weishan Ruan.
• Department of Gastroenterology, Zhongshan People's Hospital, Zhongshan City, China.
• Medicine (Baltimore). 2021 Jun 4; 100 (22): e26139e26139.

RationaleGroove pancreatitis (GP) is a rare form of chronic pancreatitis. Since GP presents with nonspecific symptoms, it can be challenging to diagnose. Duodenal obstruction is often caused by malignant diseases; however, when associated with acute pancreatitis, it is rarely induced by groove pancreatitis.Patients ConcernsA 56-year-old man who presented with acute pancreatitis complained of recurrent upper abdominal discomfort. His concomitant symptoms included abdominal pain, postprandial nausea, and vomiting. Contrast-enhanced computed tomography (CT) of the abdomen showed thickening of the duodenum wall. Gastrointestinal radiographs and upper gastrointestinal endoscopy showed an obstruction of the descending duodenum.DiagnosisThe pathologic diagnosis was groove pancreatitis.InterventionsThe patient underwent gastrojejunostomy to relieve the obstruction.OutcomesThe patient had an uneventful recovery with no complications.LessonsGroove pancreatitis should be considered in the differential diagnosis of patients presenting with acute pancreatitis and duodenal obstruction. These data can help to make a precise diagnosis and develop an appropriate treatment plan.Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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