DNA methylation changes that precede onset of dysplasia in advanced sessile serrated adenomas

Abstract excerpt

BACKGROUND: Sessile serrated adenomas (SSAs) are common polyps which give rise to 20-30% of colorectal cancer (CRC). SSAs display clinicopathologic features which present challenges in surveillance, including overrepresentation in young patients, proclivity for the proximal colon and rarity of histologic dysplasia (referred to then as SSAs with dysplasia, SSADs). Once dysplasia develops, there is rapid...

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