Paraduodenal hernia is a rare congenital internal hernia which arises
from an error of rotation of the mid,out with entrapment of the small
intestine beneath the developing colon. It is important as it usually
presents as intestinal obstruction, and before laparotomy is often mis
diagnosed. Mortality increases significantly with delays in surgical t
reatment. Two cases are presented: an 8 year old boy and a 52 year old
man. Both presented with a short history of abdominal pain and an acu
te abdomen. With prompt surgical treatment, they recovered rapidly.