301. Sex-related location of head and neck melanoma strongly argues for a major role of sun exposure in cars and photoprotection by hair.
- Author
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Lesage C, Barbe C, Le Clainche A, Lesage FX, Bernard P, and Grange F
- Subjects
- Adult, Aged, Aged, 80 and over, Cheek pathology, Ear pathology, Female, Forehead pathology, Head and Neck Neoplasms epidemiology, Humans, Incidence, Male, Melanoma epidemiology, Middle Aged, Neoplasms, Radiation-Induced epidemiology, Neoplasms, Radiation-Induced pathology, Nose pathology, Registries, Retrospective Studies, Skin Neoplasms epidemiology, Skin Neoplasms pathology, Automobiles, Hair, Head pathology, Head and Neck Neoplasms pathology, Melanoma pathology, Neck pathology, Sex Factors, Ultraviolet Rays adverse effects
- Abstract
Head and neck melanomas (HNMs) are frequent and have a poorer prognosis than melanomas at other sites. Photoprotection in these locations is difficult. In this population-based study of 279 HNMs diagnosed in a French region between 2004 and 2009, major differences were found between genders. A clearcut, sex-related distribution was found between a "peripheral" area (scalp, forehead, temples, ears, and neck) and a "central" one (other parts of the face), with 56.7% of HNMs being located in the peripheral area in men and 79.3% in the central area in women (P<0.0001). Moreover, HNMs located in the peripheral area occurred on the left side in 57.6% of men and on the right side in 73.1% of women (P=0.009). Peripheral HNMs differed from central HNMs by a higher proportion of invasive tumors, nodular or superficial spreading melanomas, and a lower proportion of lentigo maligna melanomas (LMMs). We hypothesized that this differential distribution between men and women could be explained mostly by a major role of long-term photoprotection by hair and sun exposure in a car. Important public health messages could result from these observations, such as the role of hairstyles in melanoma prevention and the importance of reducing sun exposure in a car, particularly in professional drivers.
- Published
- 2013
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