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  • Title: Vitiligo-like leucoderma during photochemotherapy for mycosis fungoides.
    Author: Mimouni D, David M, Feinmesser M, Coire CI, Hodak E.
    Journal: Br J Dermatol; 2001 Dec; 145(6):1008-14. PubMed ID: 11899124.
    Abstract:
    We describe four patients with mycosis fungoides (MF) in whom depigmentation, and also leucotrichia in one, occurred following the resolution of the eruption during phototherapy (psoralen plus ultraviolet A treatment in three patients, climatotherapy in one). In all cases, the depigmentation was localized to the area of the pre-existing MF lesions. There was no clinically obvious phototoxicity. Biopsy study including S100 staining in all cases, and electron microscopy in one case, demonstrated the total absence of melanocytes, with no evidence of MF. It is suggested that the phototherapy may have activated a cell-mediated immunity leading to destruction of the melanocytes. We recommend that vitiligo-like leucoderma be added to the list of untoward effects of phototherapy in MF.
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