Clinical and endoscopic features and endoscopic treatment efficacy of cap polyposis
10.3760/cma.j.cn321463-20211119-00690
- VernacularTitle:帽状息肉病临床和内镜特征及内镜下切除治疗效果
- Author:
Shujia CHEN
1
;
Shengbin QI
;
Xiujing SUN
;
Peng LI
;
Shutian ZHANG
Author Information
1. 首都医科大学附属北京友谊医院消化内科 国家消化系统疾病临床研究中心 北京市消化疾病中心，北京 100050
- Keywords:
Intestinal polyps;
Cap polyposis;
Clinical features;
Endoscopic features;
Endoscopic submucosal dissection;
Endoscopic mucosal resection
- From:
Chinese Journal of Digestive Endoscopy
2022;39(10):838-840
- CountryChina
- Language:Chinese
-
Abstract:
To investigate the clinical and endoscopic characteristics and endoscopic treatment efficacy of cap polyposis, data of 14 patients (56 polyps) who were histologically diagnosed as having cap polyposis after endoscopic submucosal dissection (ESD) or endoscopic mucosal resection (EMR) in Beijing Friendship Hospital from June 2017 to February 2021 was retrospectively analyzed. Of the 14 patients, 8 were males and 6 were females. The age ranged from 14 to 74 years, including 7 cases of <60 years old and 7 cases of ≥60 years old. 7 patients (50.0%) had clinical manifestations. Four cases had multiple polyps and 10 cases (71.4%) had single polyps. There were 42 polyps (75.0%) located in the rectum, 13 (23.2%) in the sigmoid colon and 1 in the transverse colon. According to the classification of Yamada, 44 polyps (78.6%) were type Ⅰ, 3 polyps were type Ⅱ, 5 polyps were type Ⅲ and 4 polyps were type Ⅳ. Under endoscopy, there were 41 polyps (73.2%) with obvious white cap-like coverings on the surface and 23 polyps with obvious hyperemia and redness on the mucosa, 8 of which were both visible. Two cases were treated with ESD and 12 cases were treated with EMR, all of which were completely excised. No bleeding, perforation, infection or other complications occurred during and after operation. The clinical symptoms of 7 patients were relieved. During the follow-up period, 11 cases (78.6%) completed colonoscopy, and no polyp recurrence was found. In conclusion, there is no gender or age difference in patients of cap polyposis. It is usually single and located in the rectum and sigmoid colon with Yamada type Ⅰ. The surface of lesions is mostly covered with white cap. Patients may have no obvious clinical symptoms. Treatment of ESD and EMR is safe and effective for cap polyposis.
