[Nail pigmentation during therapy with cyclophosphamide and doxorubicin].

Two patients under cytotoxic therapy developed pigmentation of their fingernails. The first, under doxorubicin and cyclophosphamide for lymphoma, had horizontal streaks, while the second, under cyclophosphamide for periarteritis nodosa, exhibited diffuse pigmentation. Nail pigmentation, which occurs after an interval of some weeks or months, varies from diffuse to horizontal or longitudinal streaks. Reversal of nail pigmentation some months after withdrawal of the drug is usual. Skin or mucous membrane pigmentation may coexist. The mechanism of pigmentation remains obscure. These changes are observed more frequently in black than in white patients. In some instances, they have been recorded in several members of the same family.