北京白癜风专业医院 https://wapjbk.39.net/yiyuanzaixian/bjzkbdfyy/Thecolon,thelowerpartofthedigestivesystem,processeswasteproductsandpreparesfeces(stool)forelimination(abowelmovement).Theinnersurfaceofthecoloncanhaveabnormalgrowths,bothbenignandmalignant(cancer).Benigngrowthsarecalledpolypsoradenomas.Polyps,ifleftundetected,canbe
