 Pancreatic neoplasm Last updated: Tuesday, 21, December, 2010Key InformationAppropriate TestsLesion biopsy, FNAB.See also Pancreatitis - pseudocyst,abcessCarcinoma Tumour marker CA 19.9 to monitor disease progression, response to therapy.Neuroendocrine islet cell tumoursInsulinoma See under Hypoglycaemia.Carcinoid tumourGastrinoma See Zollinger-Ellison syndromeGlucagonoma GlucagonSomatostatinomaSomatostatinVIPomaVasoactive intestinal polypeptideMEN type I See Multiple endocrine neoplasiaThere may be overproduction of any pancreatic hormone.Cystadenoma 