Supplementary Material for: Diagnosis and Management of Lemmel Syndrome: An Unusual Presentation and Literature Review

Lemmel syndrome is a rare clinical entity characterized by the presence of a periampullary duodenal diverticulum resulting in compression and dilatation of the pancreatic and common bile ducts, accompanied by obstructive jaundice. Gastric outlet obstruction is not a known complication of this syndrome, and there are no standardized approaches to its treatment. We present the first case of Lemmel syndrome presenting as gastric outlet obstruction and provide the results of a systematic literature review.

莱梅尔综合征（Lemmel syndrome）是一类罕见的临床病症，以壶腹周围十二指肠憩室形成为特征，该憩室可导致胰管与胆总管受压扩张，并伴发梗阻性黄疸。目前胃出口梗阻并非该综合征的已知并发症，且其治疗暂无标准化方案。本文报告首例以胃出口梗阻为临床表现的莱梅尔综合征病例，并呈现系统文献综述的研究结果。