Congenital Antral Web Presenting as Gastric Outlet Obstruction in Adulthood: A Case Report

Gastric antral web (GAW) is a mucosal diaphragm causing gastric outlet obstruction. The etiology of this rare condition is heterogeneous, and clinical presentation ranges from asymptomatic disease to abdominal distention, early satiety, and weight loss. Diagnosis, while requiring a high index of suspicion, can be made by upper endoscopy, the gold standard, which reveals a tight antral web. Therapeutic options can be endoscopic, using multiple methods such as balloon dilatation and endoscopic web incision, or a surgical approach when endoscopic techniques fail. We present a case of gastric outlet obstruction due to an antral web, managed endoscopically, highlighting the importance of considering GAW in adults with unexplained upper gastrointestinal symptoms.