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Mucosal prolapse syndrome (MPS) is a benign inflammatory disease of the rectum that causes bloody stool. Endoscopic treatment for MPS has not been established. We herein report a consecutive case series of endoscopic submucosal dissection (ESD) for MPS. There were four cases treated with ESD alone. All lesions were on the dentate line, and all were polypoid. The median procedure time was 77 minutes. No complications were observed. The median observation period was 1,108 days, and bloody stool and endoscopic recurrence of MPS were not observed.ESD for polypoid-type MPS was an effective treatment for improving bloody stool and suppressing endoscopic recurrence.

Objective According to consensus guidelines, eosinophilic esophagitis (EoE) is defined as a clinicopathological entity whose symptoms and histology must always be considered together. However, endoscopic findings typical of EoE are often seen in asymptomatic esophageal eosinophilia (aEE). We aimed to clarify the clinicopathological features of aEE. Methods We retrospectively compared cases of aEE and those of symptomatic EoE. Patients or Materials We reviewed 146 patients who underwent upper gastrointestinal endoscopy and were confirmed histopathologically to have esophageal eosinophil infiltration of at least 15 eosinophils per high-power field. They were divided into the aEE group (n=75) and the EoE group (n=71). Patients' clinicopathological findings were then collected and examined. Results The EoE group experienced dysphagia (47.9%), heartburn (40.8%), food impaction (40.8%), chest pain (16.9%), and other symptoms (8.5%). There was no significant difference between the two groups with regard to age, sex, current smoking status, or alcohol consumption. The aEE group had a significantly higher body mass index (p