Abstract:Background: Pheochromocytomas and paragangliomas (PPGLs) are rare neuroendocrine tumours arising from the adrenal medulla or from paravertebral ganglia of the sympathetic chain(1). The tumours commonly produce one or more catecholamines: epinephrine, norepinephrine, and dopamine leading to a classic triad of presentation with pounding headache, profuse sweating, and palpitations occurs in spells; However, one in 10 patients may be completely asymptomatic and the diagnosis of PPGL is frequently missed(2).
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