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Efficacy of Acitretin for Porokeratosis in a Child with Chronic Cutaneous Graft Versus Host Disease

Authors


Address correspondence to Riccardo G. Borroni, M.D., Ph.D., Molecular Diagnostics Laboratory, Fondazione IRCCS Policlinico San Matteo, Viale C. Golgi 19, 27100 Pavia, Italy, or e-mail: r.borroni@smatteo.pv.it.

Abstract

Abstract:  Porokeratosis is a rare disorder of epidermal keratinization that is regarded as a precancerous. Recipients of hematopoietic stem cell transplantation (HSCT) have a greater risk of skin cancer; chronic graft versus host disease (GVHD) is an additional risk factor. A 16-year-old boy who had received HSCT for acute myelogenous leukemia was referred to us for sclerodermoid chronic cutaneous GVHD. Two years later, he developed disseminated porokeratosis with a few atypical lesions. Despite cryotherapy, numerous lesions of porokeratosis recurred rapidly. Acitretin resulted in good clinical response and reduced the rate of onset of new lesions.

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