Case Report
Eruptive nevi of the palms and soles

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The sudden eruption of atypical and benign melanocytic nevi has been associated with a number of disease states and primary skin conditions. Most case reports and series of patients have linked eruptive nevi with blistering skin disease or immunosuppression. Subsets of patients in the immunosuppressed category have remarkably increased numbers of nevi on the palms and soles. We describe a case of multiple eruptive nevi of the palms and soles in association with immunosuppression, and the potential underlying mechanisms promoting such nevogenesis are explored. Although both the absolute number of nevi and presence of dysplastic nevi have been correlated with an increased relative risk of melanoma, actual risk of melanoma in patients with eruptive nevi is unknown.

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Case report

A 25-year-old woman presented with multiple asymptomatic brown macules on the palms and soles that had initially appeared rapidly over the course of a few months during the time she was taking prednisone and azathioprine for active Crohn's disease. At the onset of her lesions, she had been using a tanning bed two to three times per week for several weeks. The patient denied any noticeable changes in preexisting lesions or any further appearance of new lesions after the original outbreak (5

Discussion

The sudden eruption of atypical and benign melanocytic nevi has been associated with a number of disease states and primary skin conditions. Blistering skin diseases account for the largest body of literature on generalized eruptive nevi, with associations reported for erythema multiforme,2, 3 Stevens-Johnson syndrome,4, 5 toxic epidermal necrolysis,3, 4, 6 epidermolysis bullosa,7, 8, 9 and blisters induced by mustard gas.10 The nevi are generally reported to appear in the weeks to months after

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    This supplement is made possible through the generous support of Stiefel Laboratories for the American Academy of Dermatology.

    Funding sources: None.

    Conflicts of interest: None identified.

    Presented in oral form (in part) at the Annual American Academy of Dermatology meeting, Washington, DC, February 2004.

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