Division of Gastroenterology, Department of Internal Medicine, Seoul Medical Center, Seoul, Korea.
Korean J Gastroenterol. 2022 Apr 25;79(4):182-186. doi: 10.4166/kjg.2022.012.
Annular pancreas is a rare congenital anomaly in which a thin band of pancreatic tissue partially or completely surrounds the duodenum. It is challenging to diagnose due to its variable clinical presentation. Approximately two-thirds of patients have no symptoms in their lifetime, and most symptomatic cases are seen in neonates and infants. Symptomatic adult patients present with upper gastrointestinal symptoms, such as epigastric pain, vomiting, and postprandial fullness associated with gastric outlet obstruction. Complications associated with annular pancreas include peptic ulcer disease, pancreatitis, pancreatic head carcinoma, and biliary obstruction. Annular pancreas is also a rare cause of upper gastrointestinal bleeding in adults, but it should be considered as one of the differential diagnoses in patients presenting with a peptic ulcer and duodenal stricture. Here, we report the case of a 60-year-old man who presented with melena and was subsequently diagnosed with an annular pancreas.
环状胰腺是一种罕见的先天性异常，其特征是胰腺组织的薄带部分或完全环绕十二指肠。由于其临床表现多变，因此诊断具有挑战性。大约三分之二的患者一生中没有症状，而大多数有症状的病例发生在新生儿和婴儿中。有症状的成年患者表现为上消化道症状，如剑突下疼痛、呕吐和餐后饱胀感，伴发胃出口梗阻。环状胰腺相关并发症包括消化性溃疡病、胰腺炎、胰头癌和胆道梗阻。环状胰腺也是成人上消化道出血的罕见病因，但在表现为消化性溃疡和十二指肠狭窄的患者中应将其作为鉴别诊断之一。在这里，我们报告了一例 60 岁男性，因黑便就诊，随后被诊断为环状胰腺。
