SERRATED POLYPS OF THE COLON AND RECTUM

SERRATED POLYPS • Epithelial lesionssawtooth pattern on polyp surface and crypt epithelium • HP and adenomas • Serrated polyps: HPs, sessile serrated adenomaspolyps(SSA), traditional serrrated adenomas polyps(TSA) • 10 years followup, adenomasK :1520%, serrated polypsK : 5060%

SERRATED POLYPS OF THE COLON AND RECTUM MEDIC ENDOSCOPY DEPARTMENT PHAM CHI TOAN, MD SERRATED POLYPS • Epithelial lesions-sawtooth pattern on polyp surface and crypt epithelium • HP and adenomas • Serrated polyps: HPs, sessile serrated adenomas/polyps(SSA), traditional serrrated adenomas/ polyps(TSA) • 10 years follow-up, adenomasK :15-20%, serrated polypsK : 50-60% HP • Most common 70-95%, 30% of all kinds • No malignant potential, distal colon, 10mm, flat, no clear border, yellow mucous layer TSA • Least frequent, 1% of all kinds • Distal colon, >5mm, pedunculated • Malignant transformation PURPOSES & RESULTS • MEDIC CENTER, 2019-2023 REVIEW OF SERRATED POLYPS • 11 CASES/2000 POLYP, MOST OF ALL:TUBULAR VILLOUS ADENOMAS(98%) • MALES/ FEMALES • MOSTLY LOCATED ON THE LEFT COLON(1DES, 3SIG,6REC,1 ANUS) • 10 SESSILE, PEDUNCULATED • NOT TYPICAL • SSA, TSA TREATMENT & FOLLOW-UP • HIGH -RISK POLYPS: SERRATED POLYPS • NOT TYPICAL • RADICAL POLYPECTOMY TREATMENT • EVERY YEAR COLONOSCOPY