What to Do for Gastric Mucosal Prolapse with Erosion

Gastric mucosal prolapse with erosion is a condition in which a segment of the gastric mucosa—typically from the antrum—slips abnormally through the pyloric channel into the duodenum, often during gastric peristalsis or under increased intragastric pressure. This mechanical displacement can lead to localized mucosal trauma, resulting in superficial erosions, inflammation, and occasionally bleeding. Symptoms may include epigastric pain (often postprandial or positional), nausea, vomiting, hematemesis, or melena—though many cases are asymptomatic and discovered incidentally during upper endoscopy.

Diagnosis relies primarily on esophagogastroduodenoscopy (EGD), which reveals characteristic findings: redundant, edematous, or erythematous mucosal folds protruding through the pylorus, sometimes with visible erosions or friability. Contrast-enhanced fluoroscopic upper GI series may show a “mushroom sign” or “inverted umbrella appearance,” but EGD remains the gold standard for both visualization and biopsy confirmation.

Management is tailored to symptom severity and endoscopic findings. Asymptomatic patients require no intervention beyond reassurance and routine surveillance if indicated. For symptomatic cases, first-line therapy includes proton pump inhibitors (PPIs) to reduce gastric acidity and promote mucosal healing, alongside lifestyle modifications—such as avoiding large meals, lying supine immediately after eating, and limiting NSAIDs or alcohol. In refractory cases with recurrent bleeding or persistent obstruction, endoscopic interventions—including mucosal resection or argon plasma coagulation—may be considered. Surgical correction (e.g., pyloroplasty or gastropexy) is exceedingly rare and reserved only for severe, treatment-resistant presentations with documented functional impairment.

Prognosis is generally excellent with conservative management. Most patients experience resolution of symptoms and mucosal healing within weeks to months. Long-term follow-up is recommended for those with recurrent hemorrhage or complex comorbidities to exclude overlapping conditions such as chronic gastritis, Helicobacter pylori infection, or peptic ulcer disease.