Article ; Online: Management of Pouch Neoplasia.
Diseases of the colon and rectum
2022 Volume 65, Issue S1, Page(s) S129–S135
Abstract: Background: Pouch neoplasia occurs following ileal pouch-anal anastomosis, with or without mucosectomy in ulcerative colitis and familiar adenomatous polyposis.: Objectives: This study aimed to review available literature and make recommendations ... ...
Abstract | Background: Pouch neoplasia occurs following ileal pouch-anal anastomosis, with or without mucosectomy in ulcerative colitis and familiar adenomatous polyposis. Objectives: This study aimed to review available literature and make recommendations regarding pouch neoplasia. Data sources: Data were collected from specialty hospitals, and a literature review was conducted due to the lack of published large-scale studies. Recommendations for treatment were made based on the literature review and expert opinions. Study selection: Large-scale studies of pouch neoplasia were selected. Intervention: The intervention was studies with details of pouch neoplasia. Main outcome measures: We aimed to identify the management modalities for pouch neoplasia based on the type. Results: Pouch neoplasia can occur in each component of the pouch-afferent limb, pouch body, cuff, and anal transitional zone. In patients with ulcerative colitis, pouch neoplasia is treated because colitis-associated neoplasia comprises a multifocal lesion, which most commonly involves the cuff and anal transitional zone. Close surveillance or endoscopic complete resection is optimal for low-grade dysplasia. For adenocarcinoma, high-grade dysplasia, and low-grade dysplasia with difficult complete resection, pouch excision is recommended. In familiar adenomatous polyposis patients with adenomas of the afferent limb or pouch body, endoscopic resection is optimal. Endoscopic resection is feasible for discrete adenoma in the cuff and anal transitional zone, and surgical excision is optimal for laterally spreading, extensive, large, or flat adenoma. For adenocarcinomas involving any component, pouch excision is recommended. Limitations: Published large-scale studies were lacking because of disease rarity. Conclusion: Pouch neoplasia occurs in each pouch component. In patients with ulcerative colitis, pouch excision is recommended for adenocarcinomas and high-grade dysplasia, whereas endoscopic intervention may be preferable to low-grade dysplasia. In familiar adenomatous polyposis patients, pouch excision is necessary for adenocarcinoma, and endoscopic resection or excisional surgery is optimal for adenoma. |
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MeSH term(s) | Humans ; Colitis, Ulcerative/complications ; Anastomosis, Surgical/adverse effects ; Anus Neoplasms/pathology ; Proctocolectomy, Restorative/adverse effects ; Adenomatous Polyposis Coli/pathology ; Adenoma/pathology ; Adenocarcinoma/pathology ; Colonic Pouches/adverse effects ; Colonic Pouches/pathology |
Language | English |
Publishing date | 2022-07-21 |
Publishing country | United States |
Document type | Review ; Journal Article |
ZDB-ID | 212581-x |
ISSN | 1530-0358 ; 0012-3706 |
ISSN (online) | 1530-0358 |
ISSN | 0012-3706 |
DOI | 10.1097/DCR.0000000000002552 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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