Gastric Diverticulum Presenting as Hematemesis: A Case Report Detailing an Uncommon Presentation of an Already Rare Entity

INTRODUCTION: Gastric diverticula (GD) are uncommon. Most are asymptomatic and diagnosed incidentally. Symptoms range from reflux and epigastric discomfort to life-threatening bleeding and perforation. We describe a case of symptomatic GD presenting as hematemesis requiring surgical treatment. CASE REPORT: A 57-year-old female presented to the emergency department (ED) with one day of epigastric pain and hematemesis. Hemoglobin was found to be stable, but blood urea nitrogen was elevated. Imaging revealed a fundal GD. Esophagogastroduodenoscopy did not show other etiology of hematemesis. The patient underwent partial gastric resection for GD removal and did well without further symptoms on follow-up. CONCLUSION: Although rare, GD needs to be included on a differential diagnosis when evaluating gastrointestinal symptoms in the ED. Patients may present with an array of complaints but can potentially develop serious complications. Providers should be familiar with the diagnostic options and treatment regimens available to better care for patients presenting with GD.