Prospective Multicenter Study to Clarify the Frequency of Peristomal Skin Disorders and Appropriate Evaluation Time in Patients with Malignant Rectal Tumors.

Objective: This study aimed to understand the effectiveness of regular care in reducing the incidence of severe peristomal skin disorders, as well as to identify their risk factors.

Summary Background Data: Peristomal skin disorders occur frequently in outpatient settings and require appropriate intervention. It remains, however, to be demonstrated when the need to follow up these patients decreases and whether assessing severity of peristomal skin disorders is useful.

A case of rapidly progressing and poorly differentiated Ip-type early-stage colorectal adenocarcinoma.

A 36-year-old woman visited our hospital with a chief complaint of bleeding during defecation. Colonoscopy revealed a 20-mm pedunculated polyp in the sigmoid colon, which was en bloc resected under endoscopy. The histopathological diagnosis was adenoma cancer with a depth of invasion indicating mucosal cancer, no lymphovascular invasion, and negative at the resection margin.

Management of Pelvic Organ Prolapse (POP) and Rectal Prolapse.

Pelvic organ prolapse (POP) is a condition wherein one or more of the organs in the pelvis slip down from their original position and protrude into the vagina. Pelvic organ prolapse surgery has increased in the urogynecological field due to higher aging society. POP patients often suffer from bowel dysfunction, such as difficulty of bowel movements and the need to strain or push on the vagina to have a bowel movement.

Efficacy and safety of oral sulfate solution for bowel preparation in Japanese patients undergoing colonoscopy: Noninferiority-based, randomized, controlled study.

Objectives: To compare the efficacy and safety of oral sulfate solution administered using the same-day dose and the split-dose regimens with those of polyethylene glycol plus ascorbate solution, used for bowel preparation in Japanese patients undergoing colonoscopy.

Methods: This multicenter (n = 13), randomized, active-controlled, colonoscopist- and image evaluator-blinded, noninferiority study with parallel-group comparison recruited 632 patients from December 2018 to June 2019. Of these, 602 patients were divided into the oral sulfate solution same-day dose group (n = 200); oral sulfate solution split-dose group (n = 202); and polyethylene glycol plus ascorbate same-day dose group (n = 200).

Lymphoepithelioma-like carcinoma of the colon.

A 70-year-old female underwent follow-up colonoscopy after colonic polypectomy. The colonoscopy revealed the presence of a 7-mm submucosal tumor in the sigmoid colon. The tumor surface was smooth and covered with normal mucosa.

Early colon cancer within a diverticulum treated by magnifying chromoendoscopy and laparoscopy.

We report a unique case of intramucosal carcinoma in a tubulovillous adenoma arising from a single diverticulum. Endoscopic mucosal resection (EMR) was carried out successfully and completely with the assistance of laparoscopy. A 71-year-old man was admitted to our hospital because of melena and anemia.

Changes in bowel function following transanal and transvaginal rectocele repair.

Aim: This study was designed to compare preoperative and postoperative bowel functions in patients with rectocele repair.

Methods: Patients who underwent surgery for rectocele between October 1988 and October 2004 were enrolled. Prior to surgery, the patients were asked to complete a questionnaire regarding evacuation difficulty, itching, fecal incontinence, and the need for digitation.