Journal of the American Academy of Dermatology
Volume 71, n° 6
pages 1110-1116 (décembre 2014)
Doi : 10.1016/j.jaad.2014.07.050
accepted : 29 July 2014 Original Articles
| | | Markedly reduced incidence of melanoma and nonmelanoma skin cancer in a nonconcurrent cohort of 10,040 patients with vitiligo | |
Andrea Paradisi, MD, PhD a, ⁎  , Stefano Tabolli, MD, MPH a, Biagio Didona, MD b, Luciano Sobrino c, Nicoletta Russo, MD d, Damiano Abeni, MD, MPH a
a Health Services Research Unit, Istituto Dermopatico dell'Immacolata, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy b First Dermatological Clinic, Istituto Dermopatico dell'Immacolata, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy c Hospital Information System, Istituto Dermopatico dell'Immacolata, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy d Medical Direction, Istituto Dermopatico dell'Immacolata, Istituto di Ricovero e Cura a Carattere Scientifico, Rome, Italy
∗Reprint requests: Andrea Paradisi, MD, PhD, Health Services Research Unit, Istituto Dermopatico dell'Immacolata, Istituto di Ricovero e Cura a Carattere Scientifico, Via dei Monti di Creta, 104, I-00167 Rome, Italy. Genetic findings suggesting a lower susceptibility to melanoma in patients with vitiligo are supported by recent clinical studies. Nonmelanoma skin cancer (NMSC) has also been studied, but mainly in small samples, and with conflicting results. We sought to study the relative risk (RR) of melanoma and NMSC in patients with vitiligo compared with that in patients seen for vascular surgery. The frequency of melanoma and NMSC was compared between patients with vitiligo and patients seen for vascular surgery. Occurrence of skin cancer was compared by computing RR and modeled using multiple logistic regression. Overall, the crude RR for melanoma was 0.24 (95% confidence interval [CI] 0.13-0.45) in patients with vitiligo compared with those with a nondermatologic condition (occurrence 1.1‰, 95% CI 0.5‰-2.0‰ in patients with vitiligo and occurrence 4.5‰, 95% CI 3.8‰-5.4‰ in the control cohort). The crude RR for NMSC was 0.19 (95% CI 0.14-0.17) and the occurrence was 3.8‰ (95% CI 2.7‰-5.2‰) among patients with vitiligo and 19.6‰ (95% CI 18.0‰-21.4‰) in control subjects. Patients with vitiligo who underwent phototherapy had a markedly higher risk of both cancers. In our large study, patients with vitiligo have a decreased risk of developing skin neoplasms, even considering that a larger proportion in this patient group is exposed to higher levels of ultraviolet radiation. The full text of this article is available in PDF format.
Key words : cutaneous melanoma, nonmelanoma skin cancer, vitiligo Abbreviations used : CI, NMSC, PUVA, RR, UV
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| This study was supported, in part, by the Italian Ministry of Health, Rome, Italy, Progetto Ricerca Corrente 2012–RC5.3.
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| Conflicts of interest: None declared.
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