Microscopically, all tumours demonstrate dual

differentiation toward adenocarcinoma and

squamous cell carcinoma.

Occasionally, squamous elements may almost entirely

obliterate the glandular component.

Extensive tissue sampling

is necessary to demonstrate glandular component.

Anatomy of Normal Pancreas ;Normal Islets of Langerhans ; The Apud Concept ; An approach to reporting of pancreatic specimen ; Reporting of pancreatic biopsies for the diagnosis of neoplastic lesions ; Reporting of ampullary and periampullary biopsies for the diagnosis of neoplastic lesions ;Reporting of Pancreatico duodenectomy (Whipple's operation) specimen ; Reporting of Distal Pancreatectomy Specimen ; Developmental Defects of Pancreas ; Nesidioblastosis ; Pancreas Divisum ; Aberrant(Ectopic)Pancreas ; Annular Pancreas ; Pancreatic Agenesis ; Non-Neoplastic Pancreatic Cysts  ; Pancreatitis ; Acute Pancreatitis ; Chronic Pancreatitis ; Autoimmune Pancreatitis ; Herpes Simplex Pancreatitis ; Diabetes Mellitus ; Neoplasms of the Endocrine Tumours ; Islet Cell Tumours ; Glucagonomas  ; Insulinomas  ; Somatostatinoma ; VIPomas ; Pancreatic Polypeptide-Secreting Tumours ; Enterochromaffin Cell (Carcinoid) Tumours ; Pancreatic Gastrinoma ; Corticotropinoma ; Multiple Endocrine Neoplasia (MEN) Syndrome ; Carcinoma of the Pancreas ;Exocrine Pancreatic Tumours and Tumour -Like Lesions ; Paediatric Pancreatic Tumours.