RESUMO
BACKGROUND: The risk of skin cancer is correlated with skin colour. Pigmentation protects against the effects of UV radiation. AIM: To study skin, eyes and hair colour in Chilean teenagers. MATERIAL AND METHODS: The constitutive skin, hair and eyes colour and the presence of freckles was studied in 716 teenagers (416 females) of a low socio economical level and in 307 teenagers (155 females) of a high socio economical level. RESULTS: The proportion of foreign surnames was higher in the high stratum and we only found aboriginal surnames in the low stratum. The females of the lower stratum presented lighter skin than males. This difference was not observed in the higher stratum. We did not find significant differences in the eye colour between sexes, however, adolescents from the high stratum presented lighter eye colour. Females had lighter hair colour than males in both strata, also, we found lighter hair colour in the high stratum. We did not find significant differences in the presence of freckles between strata, but, the proportion of females with freckles was higher than that of males in both strata. CONCLUSIONS: Our results may identify different groups of people, within the Chilean population, with different susceptibility to the effects of ultraviolet radiation.
Assuntos
Cor de Cabelo , Melanose/epidemiologia , Caracteres Sexuais , Pigmentação da Pele , Adolescente , Chile/epidemiologia , Feminino , Humanos , Masculino , Fatores de Risco , Neoplasias Cutâneas/etiologia , Classe Social , Raios Ultravioleta/efeitos adversosRESUMO
Presentamos cuatro pacientes de raza blanca, oriundos de Sudamérica, con liquen plano actínico. Tres de ellos correspondían a la variedad anular, con lesiones localizadas casi exclusivamente en la cara, caracterizadas por placas ovaladas con bordes sobreelevados y centro de aspecto atrófico. Otro caso mostraba una forma de liquen plano actínico tipo melasma (AU)
Assuntos
Humanos , Masculino , Feminino , Adulto , Idoso , Líquen Plano/diagnóstico , Líquen Plano/patologia , Líquen Plano/tratamento farmacológico , Luz Solar/efeitos adversos , Diagnóstico DiferencialRESUMO
Presentamos cuatro pacientes de raza blanca, oriundos de Sudamérica, con liquen plano actínico. Tres de ellos correspondían a la variedad anular, con lesiones localizadas casi exclusivamente en la cara, caracterizadas por placas ovaladas con bordes sobreelevados y centro de aspecto atrófico. Otro caso mostraba una forma de liquen plano actínico tipo melasma
