title: Intra-gastric Ectopic Splenic Tissue.
abstract: A 40-year-old man presented with a 3-year duration of intermittent upper abdominal pain. Gastroscopy and endoscopic ultrasonography revealed a tumor in the bottom of the stomach with a homogenous low echogenicity that originated from the gastric serosa. An abdominal contrast-enhanced computed tomography (CT) scan showed that a well-marginated ovoid mass was obviously enhanced homogenously in the arterial period and weakened slightly in the venous period. The diagnosis of a gastric stromal tumor was made. Laparoscopic resection of the gastric tumor was subsequently performed. Surprisingly, postoperative pathological examination of the mass showed the typical structure of a normal splenic tissue. To our knowledge, ectopic splenic tissue originating from the gastric serosa is reported for the first time, showing important clinical significance for the identification of gastric malignant tumors.
authors.affiliation: Department of Hepatobiliary and Pancreatic Surgery, First Affiliated Hospital of Zhengzhou University, School of Medicine, Zhengzhou University, Zhengzhou, 450052, Henan Province, China.|Institute of Hepatobiliary and Pancreatic Diseases, School of Medicine, Zhengzhou University, Zhengzhou, 450052, Henan Province, China.
authors.forename: Weijie
authors.initials: W
authors.lastname: Wang
authors.affiliation: Department of Hepatobiliary and Pancreatic Surgery, First Affiliated Hospital of Zhengzhou University, School of Medicine, Zhengzhou University, Zhengzhou, 450052, Henan Province, China.
authors.forename: Wenqi
authors.initials: W
authors.lastname: Li
authors.affiliation: Department of Hepatobiliary and Pancreatic Surgery, First Affiliated Hospital of Zhengzhou University, School of Medicine, Zhengzhou University, Zhengzhou, 450052, Henan Province, China. ylsun@zzu.edu.cn.|Institute of Hepatobiliary and Pancreatic Diseases, School of Medicine, Zhengzhou University, Zhengzhou, 450052, Henan Province, China. ylsun@zzu.edu.cn.
authors.forename: Yuling
authors.initials: Y
authors.lastname: Sun
authors.affiliation: Department of Hepatobiliary and Pancreatic Surgery, First Affiliated Hospital of Zhengzhou University, School of Medicine, Zhengzhou University, Zhengzhou, 450052, Henan Province, China.
authors.forename: Yalei
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Department of Hepatobiliary and Pancreatic Surgery, First Affiliated Hospital of Zhengzhou University, School of Medicine, Zhengzhou University, Zhengzhou, 450052, Henan Province, China.|Institute of Hepatobiliary and Pancreatic Diseases, School of Medicine, Zhengzhou University, Zhengzhou, 450052, Henan Province, China.
authors.forename: Rongtao
authors.initials: R
authors.lastname: Zhu
authors.affiliation: Department of Hepatobiliary and Pancreatic Surgery, First Affiliated Hospital of Zhengzhou University, School of Medicine, Zhengzhou University, Zhengzhou, 450052, Henan Province, China.|Institute of Hepatobiliary and Pancreatic Diseases, School of Medicine, Zhengzhou University, Zhengzhou, 450052, Henan Province, China.
authors.forename: Jian
authors.initials: J
authors.lastname: Li
authors.affiliation: Department of Pathology, First Affiliated Hospital of Zhengzhou University, School of Medicine, Zhengzhou University, Zhengzhou, 450052, Henan Province, China.
authors.forename: Hongyan
authors.initials: H
authors.lastname: Zhang
mesh_terms: D015746:Abdominal Pain / Q000209:etiology; D000328:Adult; D002828:Choristoma / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D019160:Endosonography; D005773:Gastroscopy; D006801:Humans; D010535:Laparoscopy; D008297:Male; D013154:Spleen / Q000601:surgery*; D013272:Stomach Diseases / Q000150:complications / Q000175:diagnosis / Q000601:surgery*; D014057:Tomography, X-Ray Computed
keywords: Accessory spleen; Computed tomography; Gastric stromal tumor; Gastroscopy and endoscopic ultrasonography; Splenosis