somatostatinoma A rare malignant pancreatic tumor metastases usually present by diagnosis Poor prognosis Classic triad of gallstones diabetes and steatorrhea ViPoma VernerMorrison or Watery Diarrhea hypokalemia achlorhydria syndrome A rare pancreatic tumor are malignant Clinical features include watery diarrhea leading to dehydration hypokalemia acidosis achlorhydria VIP inhibits gastric acid secretion hyperglycemia and hypercalcemia. how long does plaquenil stay in your system