Benign lymphoid polyps of the rectum.

Benign lymphoid polyps are a rare histologic entity and should not be confused with malignant disease of the colon and rectum. Although retention polyps are the single most common type of colonic polyp in children, the presence of multiple clustered polyps in the rectum should alert the radiologist to the possibility of benign lymphoid polyps. A representative case is described and a review of the pediatric experience with this entity is discussed.