Triphenyl phosphate allergy from spectacle frames.
A case of triphenyl phosphate allergy from spectacle frames is reported. Patch tests with analytical grade triphenyl phosphate, tri-m-cresyl phosphate, and tri-p-cresyl phosphate in the concentrations 5%, 0.5% and 0.05% pet. showed positive reactions to 0.05% triphenyl phosphate and 0.5% tri-m-cresyl phosphate, but no reaction to tri-p-cresyl phosphate. Gas chromatography of the tricresyl phosphate 5% pet. patch test material supplied from Trolab showed that it contained a mixture of a wide range of triaryl phosphates, including 0.08% triphenyl phosphate which is above the threshold for detecting triphenyl phosphate allergy in our patient.[1]References
- Triphenyl phosphate allergy from spectacle frames. Carlsen, L., Andersen, K.E., Egsgaard, H. Contact Derm. (1986) [Pubmed]
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