Transverse melanonychia secondary to total skin electron beam therapy: a report of 3 cases.

Quinlan, Kathryn E; Janiga, Jennifer J; Baran, Robert; Lim, Henry W · J Am Acad Dermatol · 2005

case_report · Level V

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Abstract

Longitudinal melanonychia is a common phenomenon, known to be the result of numerous etiologies. Transverse melanonychia, on the other hand, is uncommon. It has been reported in association with conventional x-ray therapy, psoralen plus ultraviolet A, infliximab, zidovudine, antimalarials, and several chemotherapeutic agents. We report 3 cases of transverse melanonychia secondary to total skin electron beam therapy in patients who were treated for mycosis fungoides.

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