Patients with non-colorectal cancers may be at elevated risk of colorectal neoplasia

Background: Screening for colonic neoplasia has decreased the incidence of colorectal cancer in the United States in the past two decades. Whether personal history of noncolorectal cancer is a risk factor for colonic neoplasia has not been well studied. We assessed the risk of colorectal neoplasia in noncolorectal cancer survivors. Methods: We conducted a retrospective study of patients who had undergone colonoscopy for any indication between...