Review Question - QID 109928

A 62-year-old man presents to his primary care physician because of abdominal pain that started after he went camping several months ago and drank from a mountain stream. This past year, he also went on a trip around the world, eating local foods at each stop. Furthermore, he has had a history of cholelithiasis and had his gallbladder removed 3 years ago. Otherwise, his medical history is significant for well-controlled hypertension and diabetes. Based on clinical suspicion, an endoscopy and biopsy was performed showing a mix of mononuclear cells and a motile, urease-positive, oxidase-positive, spiral shaped organism. The changes seen on biopsy in this patient most likely predispose him to which of the following pathologies?