Here are four things to know:
1. Researchers examined 296 patients with serrated polyposis syndrome with a median follow-up time of 45 months — a median of 26 serrated polyps and three adenomas per patient were detected.
2. Forty-seven patients developed colorectal cancer at a mean age of 53.9 years, and four of the cases were detected during surveillance.
3. Patients with more than two sessile serrated adenomas/polyps proximal to splenic flexure and one or more proximal SSA/P with high-grade dysplasia were independent CRC risk factors.
4. Close colonoscopy surveillance shows a low risk of developing CRC — the risk decreases to 1.9 percent in five years.
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