Abstract
We present a case of a pregnant woman admitted for malnutrition secondary to a large gastrocolic fistula (GCF). She has a history of perforated duodenal ulcer that required surgical pyloroplasty 6 years ago. This fistula was diagnosed on the gastrointestinal barium series showing direct transit of barium from the stomach to the colon. An upper endoscopy showed a large gastrocolonic fistula with stool leaking to the stomach. Her nutrition was optimized, then she underwent surgical repair. GCF is suspected in the patient presenting with malnutrition with a history of intra-abdominal surgery.