Perforation of the jejunum secondary to a duplication cyst lined with ectopic gastric mucosa.

We present a case of jejunal duplication with a localized perforation of the adjacent normal intestine into the substance of the liver in a 3-month-old baby. This was successfully treated by resection of the duplication and a short segment of the normal jejunum. The diagnosis was made preoperatively by pertechnetate technetium 99m isotope scanning and a barium meal examination, and we discuss the use of these investigations in children presenting with melena.