For which one of the following tumours Gastrin is a biochemical marker -
Ans. is 'b' i.e., Pancreatic neuroendocrine tumour o Gastrin is secreted by Gastrinomas. o Gastrinomas are neuroendocrine tumors found in Duodenum (50 to 70%) Pancreas (20 to 40%) and Other intraabdominal sites (mesentry, lymphnodes, biliary tract, liver, stomach, ovary).
Medullary carcinoma of thyroid
Pancreatic neuroendocrine tumour
Pheochromocytoma
Gastrointestinal stromal tumor