An 11-month-old girl had massive rectal bleeding. A midabdominal mass was p
alpated. Ultrasound scan showed a large cystic mass with diffusely echogeni
c contents; Tc-99M radionuclide scan confirmed a duplication. Exploratory s
urgery and pathology examination showed a gastric duplication with formatio
n of a fistula into the transverse colon with a colonic ulcer and hemorrhag
e. This combination of findings is presented as a rare cause of lower gastr
ointestinal hemorrhage in infancy. J Pediatr Surg 33:1815-1816. Copyright (
C) 1998 by W.B. Saunders Company.