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Gastric duplications (GD) can lead to severe adverse events. Thus, surgical resection is required once the disease is diagnosed. The main purpose of this study is to describe the clinical features of gastric duplications and to provide evidence for the diagnosis and treatment.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A retrospective review of eight gastric duplications at two medical centers Peking University People\u2019s Hospital (PKUPH) and Shandong Provincial Hospital from 2010 to 2020 was conducted. Furthermore, the literature search was also conducted by retrieving data from PubMed, EMBASE and Cochrane Library databases from the date of the database inception to January 15, 2021.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Eight patients who were diagnosed as gastric duplications and 311 published records were included in this study. In all, 319 patients were identified: Vomiting and abdominal pain were the most frequent clinical presentations among juveniles and adults respectively. There was no difference in gender distribution (F: 53.16% vs M: 46.84%), and the cystic gastric duplications were the most common type of the gastric duplications (87.04%). More than half (53.30%) of included cases were located in the greater curvature of stomach.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Gastric duplications could present with a wide spectrum of symptomatology, which might be misdiagnosed easily as other diseases. For cystic gastric duplications, the optimal treatment was a complete surgical removal. But conservative treatment might be an alternative strategy for tubular gastric duplications.<\/jats:p><\/jats:sec>","DOI":"10.1186\/s13023-021-01992-1","type":"journal-article","created":{"date-parts":[[2021,8,19]],"date-time":"2021-08-19T10:04:31Z","timestamp":1629367471000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["Clinical features of gastric duplications: evidence from primary case reports and published data"],"prefix":"10.1186","volume":"16","author":[{"given":"Yang","family":"Li","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chen","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hao","family":"Wu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Quan","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhi-Dong","family":"Gao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiao-Dong","family":"Yang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ke-Wei","family":"Jiang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ying-Jiang","family":"Ye","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2021,8,19]]},"reference":[{"issue":"6","key":"1992_CR1","doi-asserted-by":"publisher","first-page":"402","DOI":"10.1007\/s004230000170","volume":"385","author":"J Schalamon","year":"2000","unstructured":"Schalamon J, Schleef J, H\u00f6llwarth ME. 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