Table 3.

Sensitivity and specificity of biochemical tests for the detection of pheochromocytoma or paraganglioma.

Biochemical test	Sensitivity (%)		Specificity (%)
	Children	Adults	Children	Adults
Plasma normetanephrine and metanephrine	100	99	94	89
Plasma norepinephrine and epinephrine	92	84	91	81
Urinary normetanephrine and metanephrine	100	97	95	69
Urinary norepinephrine and epinephrine	100	86	83	88
Urinary vanillylmandelic acid	-	64	-	95

Children: Adapted from Weise et al.¹⁹ (based on 45 children studied, 12 pheochromocytomas). Adult patients: Adapted from Zelinka et al.²⁰ and Lenders et al.¹⁵.