A 59-year-old man presented with chronic complaints of dyspepsia and early satiety. Pantoprazole 20mg once daily did not relieve his symptoms. He did not report dysphagia nor any unintentional weight loss. A gastroscopy was performed and showed diffuse atrophic gastritis. In the gastric antrum a yellow lesion was seen, which felt hard upon palpation with the biopsy forceps (figure 1). Inspection of the duodenum and esophagus was normal. What is your diagnosis?