Single polyp of the large intestine in childhood.

A single polyp of the large intestine is a well recognized entity. It is found in both children and adults and is to be differentiated from familial adenomatosis of the large intestine, which has been fully reviewed by Lockhart-Mummery and Dukes (1939). The presenting symptom in most cases is rectal bleeding which may be of a chronic nature or may be severe. Other symptoms are prolapse of the polyp through the anal canal, intussusception or obstruction. The polyp may undergo malignant change.