Endocrine Abstracts

Introduction: An insulinoma is a neuroendocrine tumor, deriving mainly from pancreatic islet cells, that constantly produces insulin even when blood sugar is very low. Insulinomas are the most common cause of hypoglycemia resulting from endogenous hyperinsulinism. Biochemical diagnosis of insulinoma is established during prolonged fasting test (up to 72 hours) in 95 % of patients, 90-95% of insulinomas can be diagnosed during 48 hours of prolonged fasting. After biochemical co...

Introduction: Paraganglioma is a tumour derived from extra-adrenal chromaffin cells of the sympathetic paravertebral ganglia of the thorax, abdomen and pelvis. About 36 % to 60 % of the paragangliomas are functional secreting norepinephrine and normetanephrine, which cause hypertension. Non-functional paragangliomas can produce Chromogranin A. Paragangliomas also arise from the parasympathetic ganglia located along the glossopharyngeal and vagal nerves in the neck and at the b...