Review Question - QID 212894

A 37-year-old man presents to the clinic for persistent abdominal pain for the past 4 months. He reports intermittent, 6/10 pain at the epigastric region that is unrelated to food intake. There are no alleviating or exacerbating factors. He endorses a 10 lb weight loss over the past 2 months, a decrease in appetite, and general fatigue. He denies fever, chills, palpitations, shortness of breath, or diarrhea. His past medical history is significant for gastritis secondary to Helicobacter pylori infection that was treated. A physical examination demonstrates a mild fluid wave of the abdomen and pitting edema of both lower extremities. A breath urease test is negative, and a computed tomography (CT) scan of the abdomen is shown in Figure A. What is the most appropriate treatment for this patient’s condition?