Abstract
A forty-three years old healty housewife gave an enema to herself for constipation. Then an abnormal tumor prolapse was found out of the anal verge, so she came to our hospital to take medical advice. The digital repair was able to do.
According to the endoscopical finding at transverse colon, a giant polyp like Yamada's type II was pointed out at a distance of 60 centimeters from the anal verge, and invagination was diagnosed. For the reccurence of bowel obstruction, pertial colectomy at transverse colon was performed. Histological finding of the resected polyp was lipoma.
We conclude that anal incarceration might happen by the combination with migrating colon and invagination.
