In a careful review of the literature covering the past sixty years or more, we were impressed by the rarity of a peculiar type of intussusception which had prolapsed through the anus. This condition may be referred to as prolapsus intussuscepti, a type of intestinal invagination wherein a part of the intussusceptum prolapses for a variable distance beyond the anus. We have been unable to find a well-authenticated, detailed report of such a condition in any of the standard textbooks of pediatrics and surgery, and the few reports that we have found in the literature are casual and lack details of description and discussion. There are only seven such cases on medical record from 1870 up to the present, and two of these are in adults.
REVIEW OF THE LITERATURE
W. W. Keen,1 in his Jacksonian Prize Essay on intestinal obstruction, says, "... and the invagination is pushed farther and