<P> In gastroenterology , a sessile serrated adenoma ( abbreviated SSA ) , also known as sessile serrated polyp ( abbreviated SSP ) , is a premalignant flat ( or sessile ) lesion of the colon , predominantly seen in the cecum and ascending colon . </P>
what is a serrated adenoma of the colon
a premalignant flat ( or sessile ) lesion of the colon