Endocrine Abstracts

Introduction: Paragangliomas/pheochromocytomas present frequently with vague symptomatology which makes its diagnosis difficult and challenging. Cuantification of fractionated metanephrines and fractionated catecholamines in 24 h urine sample are used for diagnosis. There are situationes that can produce false positive results such as stress, drugs or smoking that must be taken into account.Patients and methods: Retrospective study on the requests made f...