{"id":3090,"date":"2015-01-29T11:15:09","date_gmt":"2015-01-29T11:15:09","guid":{"rendered":"http:\/\/old.institutcataladelpeu.com\/ca\/?p=3090"},"modified":"2016-10-21T08:06:40","modified_gmt":"2016-10-21T08:06:40","slug":"el-vitiligo-o-leucoderma-definicion-diagnostico-y-tratamiento-de-dicha-lesion-acromica","status":"publish","type":"post","link":"https:\/\/old.institutcataladelpeu.com\/ca\/el-vitiligo-o-leucoderma-definicion-diagnostico-y-tratamiento-de-dicha-lesion-acromica\/","title":{"rendered":"El vit\u00edlig o leucoderma. Definici\u00f3, diagn\u00f2stic i tractament de la lesi\u00f3 acr\u00f2mica"},"content":{"rendered":"<div>\n<p style=\"text-align: justify;\">El vit\u00edlig \u00e9s una malaltia benigna no contagiosa i de causa desconeguda que cursa amb la mort dels melan\u00f2cits o c\u00e8l\u00b7lules responsables de la pigmentaci\u00f3 de la pell. La mort dels melan\u00f2cits comporta l&#8217;abs\u00e8ncia de melanina (subst\u00e0ncia responsable de la pigmentaci\u00f3 de la pell). Pot afectar tamb\u00e9 els ulls i les membranes de mucoses.<\/p>\n<p style=\"text-align: justify;\">El vit\u00edlig \u00e9s una malaltia degenerativa que cursa amb taques blanques irregulars. S&#8217; inicia entre els 10 i els 30 anys d&#8217;edat.<\/p>\n<p style=\"text-align: justify;\">Les taques blanques es caracteritzen per ser circulars, d&#8217;extensi\u00f3 variable, vores delimitades i amb possibilitats d&#8217;extensi\u00f3.<\/p>\n<p style=\"text-align: justify;\">Les causes del vit\u00edlig no estan ben delimitades encara que s&#8217;atribueix a:<\/p>\n<p style=\"text-align: justify;\"><strong>a) Processos autoimmunes<\/strong>: alguns limf\u00f2cits activats destrueixen el melan\u00f2cit. Cal tenir en compte que el vit\u00edlig est\u00e0 associat a malalties autoimmunit\u00e0ries com la malaltia d&#8217;Addison, hipertiro\u00efdisme o l&#8217;an\u00e8mia perniciosa.<\/p>\n<p style=\"text-align: justify;\"><strong>b) Processos neur\u00f2gens:<\/strong> la interacci\u00f3 entre melan\u00f2cits i c\u00e8l\u00b7lules nervioses alliberaria una subst\u00e0ncia neuroqu\u00edmica t\u00f2xica que destruiria els melan\u00f2cits.<\/p>\n<p style=\"text-align: justify;\"><strong>c) Processos autodestructius:<\/strong> la destrucci\u00f3 de melan\u00f2cits seria conseq\u00fc\u00e8ncia de subst\u00e0ncies t\u00f2xiques creades durant el proc\u00e9s de bios\u00edntesi de la melanina.<\/p>\n<p style=\"text-align: justify;\">Les lesions solen ser blanquinoses i de vores n\u00edtides. Segueixen dos tipus de distribuci\u00f3:<\/p>\n<p style=\"text-align: justify;\"><strong>1. No segment\u00e0ries (tipus A).<\/strong> Les taques solen apar\u00e8ixer amb una certa simetria pel cos i classificant diversos subtipus:<\/p>\n<ul style=\"text-align: justify;\">\n<li>Segment\u00e0ria: les taques apareixen nom\u00e9s en un costat del cos.<\/li>\n<li>Generalitzada: \u00e9s la m\u00e9s freq\u00fcent i es caracteritza per lesions difuses en tot el cos.<\/li>\n<li>Acrofacial: lesions a la zona perioral i extremitats.<\/li>\n<li>Universal: lesions que afecten la majoria de la superf\u00edcie del cos.<\/li>\n<li>Focal: pres\u00e8ncia d&#8217;una sola lesi\u00f3 o en poques zones.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><strong>2. Segment\u00e0ries (tipus B)<\/strong>. La taca \u00e9s \u00fanica en tota la superf\u00edcie cut\u00e0nia. \u00c9s m\u00e9s freq\u00fcent en nens i joves.<\/p>\n<p style=\"text-align: justify;\">Les taques m\u00e9s freq\u00fcents apareixen en \u00e0rees de pell exposades al sol (mans, peus, bra\u00e7os, cara&#8230;). Tamb\u00e9 \u00e9s comuna l&#8217;aparici\u00f3 en melic, engonals i genitals. En el peu apareixen majorit\u00e0riament en el dors d&#8217;aquest i en els mal\u00b7l\u00e8ols.<\/p>\n<p style=\"text-align: justify;\">El diagn\u00f2stic del vit\u00edlig \u00e9s m\u00e9s aviat cl\u00ednic. Es diagnostica mitjan\u00e7ant la llum de Wood i en ocasions amb una bi\u00f2psia per confirmar l&#8217;abs\u00e8ncia de melan\u00f2cits. La llum de Wood \u00e9s una llum ultraviolada que proporciona un color blanc brillant a la superf\u00edcie cut\u00e0nia hipopigmentada.<\/p>\n<p style=\"text-align: justify;\">El tractament variar\u00e0 en funci\u00f3 del nombre de taques i de quant s&#8217;han est\u00e8s. Els tractaments es basen en corticoesteroides, psoralens al costat de rajos UVA i tractaments t\u00f2pics immunodepressors, tot i que tenen un resultat esc\u00e0s. Es recomanen fotoprotectors potents, ja que l&#8217;abs\u00e8ncia de pigmentaci\u00f3 augmentar\u00e0 el risc de lesions per radiaci\u00f3 solar. En casos concrets es poden valorar els empelts mitjan\u00e7ant cirurgia.<\/p>\n<p><a href=\"http:\/\/old.institutcataladelpeu.com\/wp-content\/uploads\/2015\/01\/la-foto-1-361.jpg\"><img  title=\"El vit\u00edlig o leucoderma. Definici\u00f3, diagn\u00f2stic i tractament de la lesi\u00f3 acr\u00f2mica\" loading=\"lazy\" decoding=\"async\" src=\"http:\/\/old.institutcataladelpeu.com\/wp-content\/uploads\/2015\/01\/la-foto-1-361-725x543.jpg\"  alt=\"El vit\u00edlig o leucoderma. Definici\u00f3, diagn\u00f2stic i tractament de la lesi\u00f3 acr\u00f2mica\"  width=\"604\" height=\"452\" \/><\/a><\/p>\n<p><a href=\"http:\/\/old.institutcataladelpeu.com\/wp-content\/uploads\/2015\/01\/la-foto-1-371.jpg\"><img  title=\"El vit\u00edlig o leucoderma. Definici\u00f3, diagn\u00f2stic i tractament de la lesi\u00f3 acr\u00f2mica\" loading=\"lazy\" decoding=\"async\" src=\"http:\/\/old.institutcataladelpeu.com\/wp-content\/uploads\/2015\/01\/la-foto-1-371-725x966.jpg\"  alt=\"El vit\u00edlig o leucoderma. Definici\u00f3, diagn\u00f2stic i tractament de la lesi\u00f3 acr\u00f2mica\"  width=\"604\" height=\"804\" \/><\/a><\/p>\n<p><a href=\"http:\/\/old.institutcataladelpeu.com\/wp-content\/uploads\/2015\/01\/la-foto-2-351.jpg\"><img  title=\"El vit\u00edlig o leucoderma. Definici\u00f3, diagn\u00f2stic i tractament de la lesi\u00f3 acr\u00f2mica\" loading=\"lazy\" decoding=\"async\" src=\"http:\/\/old.institutcataladelpeu.com\/wp-content\/uploads\/2015\/01\/la-foto-2-351.jpg\"  alt=\"El vit\u00edlig o leucoderma. Definici\u00f3, diagn\u00f2stic i tractament de la lesi\u00f3 acr\u00f2mica\"  width=\"604\" height=\"805\" \/><\/a><\/p>\n<p><a href=\"http:\/\/old.institutcataladelpeu.com\/wp-content\/uploads\/2015\/01\/la-foto-3-26.jpg\"><img  title=\"El vit\u00edlig o leucoderma. Definici\u00f3, diagn\u00f2stic i tractament de la lesi\u00f3 acr\u00f2mica\" loading=\"lazy\" decoding=\"async\" src=\"http:\/\/old.institutcataladelpeu.com\/wp-content\/uploads\/2015\/01\/la-foto-3-26-725x543.jpg\"  alt=\"El vit\u00edlig o leucoderma. Definici\u00f3, diagn\u00f2stic i tractament de la lesi\u00f3 acr\u00f2mica\"  width=\"604\" height=\"452\" \/><\/a><\/p>\n<p><a href=\"http:\/\/old.institutcataladelpeu.com\/wp-content\/uploads\/2015\/01\/la-foto-4-24.jpg\"><img  title=\"El vit\u00edlig o leucoderma. Definici\u00f3, diagn\u00f2stic i tractament de la lesi\u00f3 acr\u00f2mica\" loading=\"lazy\" decoding=\"async\" src=\"http:\/\/old.institutcataladelpeu.com\/wp-content\/uploads\/2015\/01\/la-foto-4-24-725x543.jpg\"  alt=\"El vit\u00edlig o leucoderma. Definici\u00f3, diagn\u00f2stic i tractament de la lesi\u00f3 acr\u00f2mica\"  width=\"604\" height=\"452\" \/><\/a><\/p>\n<p><a href=\"http:\/\/old.institutcataladelpeu.com\/wp-content\/uploads\/2015\/01\/la-foto-5-23.jpg\"><img  title=\"El vit\u00edlig o leucoderma. Definici\u00f3, diagn\u00f2stic i tractament de la lesi\u00f3 acr\u00f2mica\" loading=\"lazy\" decoding=\"async\" src=\"http:\/\/old.institutcataladelpeu.com\/wp-content\/uploads\/2015\/01\/la-foto-5-23-725x543.jpg\"  alt=\"El vit\u00edlig o leucoderma. Definici\u00f3, diagn\u00f2stic i tractament de la lesi\u00f3 acr\u00f2mica\"  width=\"604\" height=\"452\" \/><\/a><\/p>\n<p><a href=\"http:\/\/old.institutcataladelpeu.com\/wp-content\/uploads\/2015\/01\/vitiligo-3-34.jpg\"><img  title=\"El vit\u00edlig o leucoderma. Definici\u00f3, diagn\u00f2stic i tractament de la lesi\u00f3 acr\u00f2mica\" loading=\"lazy\" decoding=\"async\" src=\"http:\/\/old.institutcataladelpeu.com\/wp-content\/uploads\/2015\/01\/vitiligo-3-34.jpg\"  alt=\"El vit\u00edlig o leucoderma. Definici\u00f3, diagn\u00f2stic i tractament de la lesi\u00f3 acr\u00f2mica\"  width=\"576\" height=\"768\" \/><\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>El vit\u00edlig \u00e9s una malaltia benigna no contagiosa i de causa desconeguda que cursa amb la mort dels melan\u00f2cits o c\u00e8l\u00b7lules responsables de la pigmentaci\u00f3 de la pell. La mort dels melan\u00f2cits comporta l&#8217;abs\u00e8ncia de melanina (subst\u00e0ncia responsable de la pigmentaci\u00f3 de la pell). Pot afectar tamb\u00e9 els ulls i les membranes de mucoses. El [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":3744,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[276],"tags":[],"class_list":["post-3090","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-alteracions-dermatologiques"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>El vit\u00edlig o leucoderma. Definici\u00f3, diagn\u00f2stic i tractament de la lesi\u00f3 acr\u00f2mica - Institut Catal\u00e0 del Peu<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"El vit\u00edlig o leucoderma. Definici\u00f3, diagn\u00f2stic i tractament de la lesi\u00f3 acr\u00f2mica - Institut Catal\u00e0 del Peu\" \/>\n<meta property=\"og:description\" content=\"El vit\u00edlig \u00e9s una malaltia benigna no contagiosa i de causa desconeguda que cursa amb la mort dels melan\u00f2cits o c\u00e8l\u00b7lules responsables de la pigmentaci\u00f3 de la pell. La mort dels melan\u00f2cits comporta l&#8217;abs\u00e8ncia de melanina (subst\u00e0ncia responsable de la pigmentaci\u00f3 de la pell). Pot afectar tamb\u00e9 els ulls i les membranes de mucoses. El [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/old.institutcataladelpeu.com\/ca\/el-vitiligo-o-leucoderma-definicion-diagnostico-y-tratamiento-de-dicha-lesion-acromica\/\" \/>\n<meta property=\"og:site_name\" content=\"Institut Catal\u00e0 del Peu\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/institutcataladelpeu\/\" \/>\n<meta property=\"article:published_time\" content=\"2015-01-29T11:15:09+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2016-10-21T08:06:40+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/old.institutcataladelpeu.com\/wp-content\/uploads\/2015\/01\/la-foto-5-23.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"819\" \/>\n\t<meta property=\"og:image:height\" content=\"614\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Miguel \u00c1ngel Ba\u00f1os Bernad\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@ICPeu\" \/>\n<meta name=\"twitter:site\" content=\"@ICPeu\" \/>\n<meta name=\"twitter:label1\" content=\"Escrit per\" \/>\n\t<meta name=\"twitter:data1\" content=\"Miguel \u00c1ngel Ba\u00f1os Bernad\" \/>\n\t<meta name=\"twitter:label2\" content=\"Temps estimat de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minuts\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/old.institutcataladelpeu.com\\\/ca\\\/el-vitiligo-o-leucoderma-definicion-diagnostico-y-tratamiento-de-dicha-lesion-acromica\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/old.institutcataladelpeu.com\\\/ca\\\/el-vitiligo-o-leucoderma-definicion-diagnostico-y-tratamiento-de-dicha-lesion-acromica\\\/\"},\"author\":{\"name\":\"Miguel \u00c1ngel Ba\u00f1os Bernad\",\"@id\":\"https:\\\/\\\/old.institutcataladelpeu.com\\\/en\\\/#\\\/schema\\\/person\\\/d2ccc8088f9445f3e2758c2a60caf354\"},\"headline\":\"El vit\u00edlig o leucoderma. 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