Histological typing of pancreatic and periampullary carcinoma

In recent years, detailed histological, immunocytochemical and ultrastructural studies of pancreatic tumours have provided a system of classification of pancreatic cancer. This classification defines tumour entities with distinct clinicopathologic and prognostic features. Although ductal adenocarcinoma is the most commonly encountered tumour, rare types of pancreatic cancer must not be neglected because of their particular biological features.