Endocrine Abstracts

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...