Northern California SGNA Fall Conference 2010 Pancreas Neoplasms Randall E Lee, MD, FACP Gastroenterologist, VA NCHCS Associate Clinical Professor of Medicine, UC Davis Disclaimer • No financial conflicts of interest or sponsorships Pancreas neoplasms • • • • Pancreas anatomy, embryology, physiology Pancreas endocrine neoplasms Pancreatic adenocarcinoma Pancreas cystic neoplasms Pancreas anatomy Pancreas Embryology Pancreas physiology • Exocrine • Endocrine Pancreas physiology • Exocrine * Secretion into a duct • Endocrine Pancreas physiology • Exocrine * Secretion into a duct • Endocrine * Secretion directly into the bloodstream Pancreas structure • Acini • Islets Pancreas structure • Acini * Connected to ducts * Exocrine function • Islets • Acini * Connected to ducts * Exocrine function * “acinarization” • Islets Pancreas structure • Acini • Islets * Not connected to ducts * Endocrine function Pancreas structure • Acini * Connected to ducts * Exocrine function * “acinarization” • Islets * Not connected to ducts * Endocrine function Pancreas physiology • Exocrine * Amylase: carbohydrate * Lipases: fat * Proteases: protein • Endocrine Pancreas physiology • Exocrine * Amylase: carbohydrate * Lipases: fat * Proteases: protein • Endocrine Pancreas physiology • Exocrine • Endocrine * * * * Insulin (beta cells) Glucagon (alpha cells) Pancreatic polypeptide (PP cells) Somatostatin (D cells) Pancreas neoplasms adenocarcinoma endocrine cystic neoplasm lymphoma other Pancreatic endocrine neoplasms • • • • Insulinoma Gastrinoma Glucagonoma VIPoma Pancreas endocrine neoplasms • Insulinoma * hypoglycemia • Gastrinoma • Glucagonoma • VIPoma Pancreas endocrine neoplasms • Insulinoma • Gastrinoma * “Zollinger-Ellison Syndrome” * Peptic ulcer, GERD, diarrhea * Gastrin is not normally produced in the pancreas! • Glucagonoma • VIPoma Pancreas endocrine neoplasms • Insulinoma • Gastrinoma • Glucagonoma * Hyperglycemia * Weight loss * Rash • VIPoma Glucagonoma rash: Necrolytic migratory erythema Pancreas endocrine neoplasms • • • • Insulinoma Gastrinoma Glucagonoma VIPoma * Severe diarrhea * Hypokalemia * Volume depletion Pancreatic endocrine neoplasm localization: CT SR scintigraphy “Octreoscan” EUS Pancreas endocrine neoplasm: treatment • Medical suppression of symptoms • Surgical resection Pancreas neoplasms adenocarcinoma endocrine cystic neoplasm lymphoma other Pancreas adenocarcinoma • • • • Usually arises from the duct Men more than women, older than 45 years Generally poor long-term prognosis No good screening / early detection methods Pancreas adenocarcinoma: perspective 2010 deaths (thousands) 700 600 500 400 300 200 100 0 za en flu In s te be 's ia D er im he lz A t en id cc A PD O C ke ro St r ce e an as C se di rt ea H Pancreas adenocarcinoma: perspective New Cases 2010 Deaths 2010 250 200 150 100 50 0 Lung Prostate Breast Colorectal Melanoma Pancreas National Cancer Institute, 2010 Pancreas adenocarcinoma: risks smoking heredity diet benign disease unknown Pancreas adenocarcinoma: clinical presentation • Location! • Location! • Location! Pancreas adenocarcinoma: clinical presentation • Symptoms occur late in disease course. • Head of pancreas: * Jaundice * Palpable non-tender gallbladder (Courvoisier’s sign) • Advanced: * Fat malabsorption: steatorrhea * Pain * Fatigue, anorexia, weight loss Pancreas adenocarcinoma: diagnosis • • • • CT +/- biopsy MRCP ERCP & brushing / biopsy EUS & FNA Pancreas adenocarcinoma: CT ERCP: “Double-duct” sign Pancreas malignancy: ERCP • Sphincterotomy * Grounding pad, generator, sphincterotome • Strictures * Guidewire(s), dilators, stents * Cytology brush, glass slides, fixative Pancreas malignancy: EUS • Fine-needle aspiration & biopsy • Coordinate with pathologist • Cytology fixative, glass slides Pancreas adenocarcinoma: treatment • Curative resection • Palliative therapy “Whipple procedure” = pancreaticoduodenectomy Pancreas adenocarcinoma: survival after Whipple Pancreas adenocarcinoma: treatment • Curative resection • Palliative therapy ERCP • cannulation ERCP • sphincterotomy CBD stent Pancreas Adenocarcinoma: survival Pancreas neoplasms adenocarcinoma endocrine cystic neoplasm lymphoma other Pancreas neoplasms: cystic • Mucinous cystic neoplasms • Serous cystadenomas • IPMNs Mucinous cystic neoplasm • • • • • Cystic tumors filled with mucin Women > men Body & tail of pancreas Always considered premalignant / malignant Surgical resection Serous cystadenoma • • • • Cystic tumor filled with serous fluid Women > men Body & tail of pancreas Generally benign, but can cause complications I P M N Intraductal Papillary Mucinous Neoplasm IPMN • • • • Pancreatic duct dilated, filled with mucin Women = men Malignant > benign Surgical resection Pancreas Adenocarcinoma: survival IPMN survival Pancreas neoplasms • • • • Pancreas anatomy, embryology, physiology Pancreas endocrine neoplasms Pancreatic adenocarcinoma Pancreas cystic neoplasms