Occupation-related pigmented macules on the sole with parallel-ridge pattern on dermatoscopy
Tanioka M et al. - A 27-year-old man presented with pigmented macules on the right sole, which showed a parallel-ridge pattern on dermatoscopy. His work for a chemical company involved handling para-phenylenediamine. Histological examination of a biopsy from a lesion did not find any proliferation of atypical melanocytes. Shaving the cornified layer of the lesions with a surgical knife resulted in the disappearance of macules. [more...]
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