Summary
A 49-year-old man developed occupational leucoderma after the contact with para tertiary butyl catechol. He was a worker in a polyester resin plant. Allergic reaction was found at the patch test site with p-TBC and depigmentation was induced at the site. A cross reaction to para tertiary butyl phenol was also observed.
Histologically, the depigmented lesion revealed decreased number of melanin and DOPA-positive melanocytes in the basal layer.
The mechanism of depigmentation was discussed.
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Horio, T., Tanaka, Ki. & Komura, J. Depigmentation due to para tertiary butyl catechol. Int. Arch Occup Environ Heath 39, 127–133 (1977). https://doi.org/10.1007/BF00405657
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DOI: https://doi.org/10.1007/BF00405657