Endocrine Abstracts

Background: Pheochromocytoma and paraganglioma (PPGL) are rare endocrine tumours that secrete catecholamines. Methoxycatecholamines in free plasma or fractionated methoxycatecholamines in 24-hour urine collections are the recommended tests for the diagnosis of pheochromocytoma, based on which patients are referred for surgical removal of the adrenal gland. However, false-positive results from these tests remain a problem and some patients are referred for adrenalectomy due to ...