Catecholamine metabolites in the aqueous of retinoblastoma.
Academic Article
Overview
abstract
The aqueous humor of five patients with histologically proven retinoblastoma were analyzed for the main catabolic products of norephinephrine and epinephrine. In each case, there were no detectable levels of normethanephrine, metanephrine, vanilmandelic acid (VMA), and 3-methoxy, 4-hydroxy phenoglycol. The techniques are sensitive to 1 microgram/ml but will not detect the presence of homovanillic acid (HVA).