Urine Catecholamines
Oncology
Catecholamines are metabolised to inactive metabolites prior to excretion
Metanephrines increased in pheochromocytoma
Dopamine increased in neuroblastoma, ganglioneuroma (with urine homovallanic acid)
Catecholamines are metabolised to inactive metabolites prior to excretion
- Dopamine becomes homovanillic acid (HVA)
- Norepinephrine becomes normetanephrine and vanillylmandelic acid (VMA)
- Epinephrine becomes metanephrine and VMA
Metanephrines increased in pheochromocytoma
Dopamine increased in neuroblastoma, ganglioneuroma (with urine homovallanic acid)