Figure 2a. High-grade gastric MALT lymphoma with a background of low-grade MALT lymphoma in a 78-year-old woman. The probable diagnosis was advanced gastric carcinoma. (a) Compression spot radiograph shows a large, deep ulcer (solid arrows) in the posterior wall of the antrum. The convergence of thickened folds (open arrows) is disorganized. (b) Photograph of the resected specimen shows the ulcer (solid arrows) and the disorganized convergent rugae (open arrows).