Figure 3. Pathological findings of the resected specimen. a. b. Microscopic finding of the resected specimen demonstrates highgrade dysplasia of IPMN of the pancreatobiliary subtype (a. H&E x40; b. H&E x200). c. Most of the neoplastic lesions comprise low-grade dysplasia of IPMN with the gastric subtype (H&E x100).