Details

Autor(en) / Beteiligte

• Nishio, Masafumi
• Kunisaki, Reiko
• Shibata, Wataru
• Ajioka, Yoichi
• Hirasawa, Kingo
• Takase, Akiko
• Chiba, Sawako
• Inayama, Yoshiaki
• Ueda, Wataru
• Okawa, Kiyotaka
• Otake, Haruka
• Ogashiwa, Tsuyoshi
• Kinoshita, Hiroto
• Saigusa, Yusuke
• Kimura, Hideaki
• Kato, Jun
• Maeda, Shin
• Suzuki, Hiromu

Titel

Serrated polyps in patients with ulcerative colitis: Unique clinicopathological and biological characteristics

Ist Teil von

• PloS one, 2023-02, Vol.18 (2), p.e0282204-e0282204

Ort / Verlag

United States: Public Library of Science

Erscheinungsjahr

2023

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Serrated polyps have recently been reported in patients with ulcerative colitis (UC); however, their prevalence and detailed characteristics remain unclear. The prevalence and clinicopathological and biological characteristics of serrated polyps in patients with UC were retrospectively examined in a single tertiary inflammatory bowel disease center in Japan from 2000 to 2020. Among 2035 patients with UC who underwent total colonoscopy, 252 neoplasms, including 36 serrated polyps (26 in colitis-affected segments, 10 in colitis-unaffected segments), were identified in 187 patients with UC. The proportion of serrated polyps was 1.8% (36/2035). Serrated polyps in colitis-affected segments were common with extensive colitis (88%), history of persistent active colitis (58%), and long UC duration (12.1 years). Serrated polyps in colitis-affected segments were more common in men (88%). Of the 26 serrated polyps in colitis-affected segments, 15, 6, and 5 were categorized as sessile serrated lesion-like dysplasia, traditional serrated adenoma-like dysplasia, and serrated dysplasia not otherwise specified, respectively. Sessile serrated lesion-like dysplasia was common in the proximal colon (67%) and with BRAF mutation (62%), whereas traditional serrated adenoma-like dysplasia and serrated dysplasia not otherwise specified were common in the distal colon (100% and 80%, respectively) and with KRAS mutations (100% and 75%, respectively). Serrated polyps comprised 14% of the neoplasias in patients with UC. Serrated polyps in colitis-affected segments were common in men with extensive and longstanding colitis, suggesting chronic inflammation in the development of serrated polyps in patients with UC.