Subject(s)

Ethanolamines/urine , Phenethylamines/urine , Phenylacetates/urine , Pheochromocytoma/metabolism , Vanilmandelic Acid/urine , Adolescent , Age Factors , Catecholamines/urine , Child , Diagnosis, Differential , Ganglioneuroma/diagnosis , Humans , Neuroblastoma/diagnosis , Pheochromocytoma/diagnosis , Pheochromocytoma/surgery