Table 1.
Pathological diagnosis
| Classification of pancreatic tumors (WHO 2010 classification) |
| Benign |
| Acinar cell cystadenoma |
| Serous cystadenoma |
| Premalignant lesions |
| Pancreatic intraepithelial neoplasia type 3 (PanIN-3) |
| Intraductal papillary mucinous neoplasm with low or intermediate grade dysplasia |
| Intraductal papillary mucinous neoplasms |
| High-grade dysplasia |
| Tubulo-papillary intraductal neoplasia |
| Mucinous cystic dysplasia neoplasia with low or intermediate grade |
| Mucinous cystic neoplasm with high-grade dysplasia |
| Malignant |
| Ductal adenocarcinoma |
| Adenosquamous carcinoma |
| Colloid carcinoma (non-cystic mucinous carcinoma) |
| Hepatoid carcinoma |
| Medullary carcinoma |
| Cell carcinoma signet ring |
| Undifferentiated carcinoma |
| Undifferentiated carcinoma with osteoclast-like giant cells |
| Acinar cell carcinoma |
| Cystoadenocarcinoma acinar cells |
| Intraductal papillary mucinous neoplasm or associated with invasive carcinoma |
| Mixed acinar-ductal carcinoma |
| Mixed acinar-neuroendocrine carcinoma |
| Mixed-neuroendocrine carcinoma acinar-ductal |
| Mixed ductal-neuroendocrine carcinoma |
| Mucinous cystic neoplasm associated with invasive carcinoma |
| Pancreatoblastoma |
| Serous cystoadenocarcinoma |
| Pseudopapillary or solid neoplasia |
| Neuroendocrine neoplasms |
| Pancreatic neuroendocrine microadenoma |
| Neuroendocrine tumor (NET) |
| Pancreatic, not functioning G1, G2 NET |
| G1 NET |
| G2 NET |
| Neuroendocrine carcinoma (NEC) |
| Large cell NEC |
| Small cell NEC |
| NET serotonin producer (carcinoid) |
| Gastrinoma |
| Glucagonoma |
| Insulinoma |
| Somatostatinoma |
| VIPoma |
| Mature teratoma |
| Mesenchymal tumors |
| Lymphomas |
| Metastasis |