Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
Pathology Department, Emergency Clinical County Hospital, Cluj-Napoca, Romania.
J Gastrointestin Liver Dis. 2019 Mar;28(1):117-120. doi: 10.15403/jgld.2014.1121.281.ulc.
Gastric heterotopia is defined as the presence of morphologically normal gastric tissue at a non-physiological site, coexisting with the original tissue. Although it is not uncommon to see it in the esophagus, duodenum or small intestine, it is exceptionally rare to discover gastric mucosa in the rectum. Here we report the case of a 46-year old male with a 10-year history of ulcerative colitis in whom the surveillance rectosigmoidoscopy detected a Mayo score of 1 for ulerative colitis activity and a middle rectal sessile polyp. Pathological examination revealed an active chronic colitis, and rectal mucosa with heterotopic gastric mucosa composed of oxyntic glands was depicted. A month later, the patient was reevaluated and endoscopic mucosal resection was performed. Histology confirmed the gastric body type mucosa co-mingling with rectal mucosa.
胃异位是指在非生理部位存在形态正常的胃组织，与原始组织共存。虽然在食管、十二指肠或小肠中并不少见，但在直肠中发现胃黏膜则极为罕见。我们在此报告一例 46 岁男性病例，该患者溃疡性结肠炎病史 10 年， surveillance 直肠乙状结肠镜检查发现溃疡性结肠炎活动度 Mayo 评分为 1 分，且存在一个直肠中部无蒂息肉。病理检查显示为活动性慢性结肠炎，直肠黏膜伴胃黏膜异位，由泌酸腺组成。一个月后，患者再次接受评估，并进行了内镜黏膜切除术。组织学证实胃体型黏膜与直肠黏膜共存。
