%0 Case Reports %T Case report: benign gastric ulcer erosion leading to a gastropericardial fistula in a patient with no known risk factors. %A Reicher JJ %A Mindelzun R %J Clin Imaging %V 38 %N 4 %D Jul-Aug 2014 %M 24629891 %F 2.42 %R 10.1016/j.clinimag.2014.02.005 %X A 53-year-old homeless male presented to the emergency department with sudden onset chest pain and was found to have a large pneumopericardium on chest X-ray. The patient had no history of surgery, hiatal hernia, or ulcer disease. A contrast-enhanced computed tomography scan demonstrated the pneumopericardium and raised concern for possible gastropericardial fistula from a benign gastric ulcer. An esophagogastroduodenoscopy confirmed the fistula, as did surgery, and intraoperatively vegetable particular matter was removed from the anatomic space continuous with the pericardium.