{"id":31885,"date":"2024-06-06T13:08:02","date_gmt":"2024-06-06T11:08:02","guid":{"rendered":"https:\/\/www.mgc.es\/?p=31885"},"modified":"2024-03-26T13:11:22","modified_gmt":"2024-03-26T12:11:22","slug":"una-piga-que-canvia","status":"publish","type":"post","link":"https:\/\/www.mgc.es\/ca\/blog\/una-piga-que-canvia\/","title":{"rendered":"Una piga que canvia"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">\u00cdndex de continguts<\/p>\n<\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.mgc.es\/ca\/blog\/una-piga-que-canvia\/#Que_es_una_piga\" >Qu\u00e8 \u00e9s una piga<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.mgc.es\/ca\/blog\/una-piga-que-canvia\/#Que_causa_les_pigues\" >Qu\u00e8 causa les pigues<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.mgc.es\/ca\/blog\/una-piga-que-canvia\/#Per_que_causen_preocupacio_les_pigues\" >Per qu\u00e8 causen preocupaci\u00f3 les pigues<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.mgc.es\/ca\/blog\/una-piga-que-canvia\/#Qui_esta_en_situacio_de_risc\" >Qui est\u00e0 en situaci\u00f3 de risc<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.mgc.es\/ca\/blog\/una-piga-que-canvia\/#Quins_simptomes_te_el_melanoma_maligne\" >Quins s\u00edmptomes t\u00e9 el melanoma maligne<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.mgc.es\/ca\/blog\/una-piga-que-canvia\/#Com_es_diagnostica\" >Com es diagnostica<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.mgc.es\/ca\/blog\/una-piga-que-canvia\/#Altres_classes_de_pigues\" >Altres classes de pigues<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.mgc.es\/ca\/blog\/una-piga-que-canvia\/#Sindrome_del_nevus_displastic\" >S\u00edndrome del nevus displ\u00e0stic<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.mgc.es\/ca\/blog\/una-piga-que-canvia\/#Nevus_halo\" >Nevus halo<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.mgc.es\/ca\/blog\/una-piga-que-canvia\/#Nevus_blau\" >Nevus blau<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.mgc.es\/ca\/blog\/una-piga-que-canvia\/#Melanoma_juvenil_nevus_de_Spitz\" >Melanoma juvenil (nevus de Spitz)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.mgc.es\/ca\/blog\/una-piga-que-canvia\/#Tres_bons_consells\" >Tres bons consells<\/a><\/li><\/ul><\/nav><\/div>\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"880\" height=\"587\" src=\"https:\/\/www.mgc.es\/wp-content\/uploads\/2024\/03\/shutterstock_613097849-880x587.jpg\" alt=\"\" class=\"wp-image-31881\" srcset=\"https:\/\/www.mgc.es\/wp-content\/uploads\/2024\/03\/shutterstock_613097849-880x587.jpg 880w, https:\/\/www.mgc.es\/wp-content\/uploads\/2024\/03\/shutterstock_613097849-440x293.jpg 440w, https:\/\/www.mgc.es\/wp-content\/uploads\/2024\/03\/shutterstock_613097849-768x512.jpg 768w, https:\/\/www.mgc.es\/wp-content\/uploads\/2024\/03\/shutterstock_613097849.jpg 1000w\" sizes=\"auto, (max-width: 880px) 100vw, 880px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Que_es_una_piga\"><\/span><strong>Qu\u00e8 \u00e9s una piga<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Les pigues (o els <a href=\"https:\/\/dermatologia.cat\/es\/informacion-para-pacientes\/informacion-enfermedades\/nevos-melanociticos\/\">nevus melanoc\u00edtic<\/a>s, en termes m\u00e8dics) s\u00f3n taques an\u00f2males i molt freq\u00fcents formades per c\u00e8l\u00b7lules pigmentades a la pell. Aquestes c\u00e8l\u00b7lules s\u2019anomenen melan\u00f2cits. Molta gent t\u00e9 pigues de naixement, per\u00f2 tamb\u00e9 n\u2019hi ha que apareixen en el transcurs de la vida.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Que_causa_les_pigues\"><\/span><strong>Qu\u00e8 causa les pigues<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>La majoria de pigues s\u00f3n simplement el resultat d\u2019una proliferaci\u00f3 inofensiva de c\u00e8l\u00b7lules pigmentades a la capa m\u00e9s profunda de la pell. Hi ha pigues, conegudes com a nevus melanoc\u00edtics cong\u00e8nits, que se solen presentar en el moment del naixement. En general, per\u00f2, es formen de manera espont\u00e0nia o b\u00e9 s\u00f3n causades per l\u2019exposici\u00f3 a la llum del sol. Per tant, acostumen a apar\u00e8ixer a les zones de la pell m\u00e9s exposades al sol.<\/p>\n\n\n\n<p>Bona part d\u2019aquestes pigues surt durant els primers vint anys de vida, tot i que poden continuar proliferant els vint anys seg\u00fcents. Si b\u00e9, moltes desapareixen amb l\u2019edat.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Per_que_causen_preocupacio_les_pigues\"><\/span><strong>Per qu\u00e8 causen preocupaci\u00f3 les pigues<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>El principal problema, i que constitueix el motiu de preocupaci\u00f3, \u00e9s si una petita part de les pigues degenera en una malaltia anomenada <a href=\"https:\/\/cancercenter.cun.es\/todo-sobre-cancer\/tipos-cancer\/melanoma\">melanoma maligne<\/a>, una classe de c\u00e0ncer de pell. Per a aquesta forma de c\u00e0ncer, que pot ser fatal, el diagn\u00f2stic i el tractament preco\u00e7 en milloren molt el pron\u00f2stic. En les primeres fases es tracta amb una escissi\u00f3 quir\u00fargica (\u00e9s a dir, s\u2019extirpa el tumor amb una franja de pell circumdant).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Qui_esta_en_situacio_de_risc\"><\/span><strong>Qui est\u00e0 en situaci\u00f3 de risc<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>La pres\u00e8ncia de pigues \u00e9s habitual i no implica pas que s\u2019hagin de tornar malignes en el futur. Ara, com m\u00e9s nevus t\u00e9 una persona, m\u00e9s perilla de patir un melanoma, sobretot si les pigues se sotmeten a exposicions solars importants o a traumes constants (per exemple, amb les afaitades, si s\u00f3n a la superf\u00edcie de la barba, o amb el refrec, a la zona de la corretja o del peu, etc.).<\/p>\n\n\n\n<p>El risc augmenta si hi ha una hist\u00f2ria familiar de melanoma maligne. En cas de m\u00faltiples nevus i\/o d\u2019un historial familiar amb melanomes, cal extremar la prevenci\u00f3 amb les exposicions solars.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Quins_simptomes_te_el_melanoma_maligne\"><\/span><strong>Quins s\u00edmptomes t\u00e9 el melanoma maligne<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Els s\u00edmptomes m\u00e9s habituals s\u00f3n:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pigues que fan mal i\/o picor.<\/li>\n\n\n\n<li>Pigues que augmenten de mida o tenen un aspecte irregular, en especial a les vores.<\/li>\n\n\n\n<li>Pigues que canvien de color, sobretot quan s\u2019enfosqueixen o tenen colors diferents.<\/li>\n\n\n\n<li>Les hemorr\u00e0gies espont\u00e0nies, \u00e9s a dir quan les pigues sagnen fortu\u00eftament.<\/li>\n\n\n\n<li>Les lesions pigment\u00e0ries sat\u00e8l\u00b7lits (o taques al voltant del nevus sospit\u00f3s).<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"527\" src=\"https:\/\/www.mgc.es\/wp-content\/uploads\/2024\/03\/lunar-o-melanoma2.jpg\" alt=\"\" class=\"wp-image-31883\" srcset=\"https:\/\/www.mgc.es\/wp-content\/uploads\/2024\/03\/lunar-o-melanoma2.jpg 800w, https:\/\/www.mgc.es\/wp-content\/uploads\/2024\/03\/lunar-o-melanoma2-440x290.jpg 440w, https:\/\/www.mgc.es\/wp-content\/uploads\/2024\/03\/lunar-o-melanoma2-768x506.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Closeup brown mole on caucasian woman skin.<\/figcaption><\/figure>\n\n\n\n<p>Les caracter\u00edstiques que poden fer pensar en un melanoma s\u00f3n un conjunt de s\u00edmptomes conegut per la <a href=\"https:\/\/www.aad.org\/public\/diseases\/skin-cancer\/el-abcde-del-melanoma\">regla de l\u2019ABCDE del melanoma<\/a>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A: asimetria, \u00e9s a dir en cas de manca de simetria en les pigues.<\/li>\n\n\n\n<li>B: vores irregulars, quan les pigues no s\u00f3n rodones o ovalades.<\/li>\n\n\n\n<li>C: color, quan el color de les pigues no \u00e9s uniforme, \u00e9s poc habitual o b\u00e9 \u00e9s diferent del color de les altres pigues del pacient.<\/li>\n\n\n\n<li>D: di\u00e0metre, en general superior de 6 mil\u00b7l\u00edmetres.<\/li>\n\n\n\n<li>E: evoluci\u00f3, una piga nova en un pacient de m\u00e9s de 30 anys o una piga que canvia.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Com_es_diagnostica\"><\/span><strong>Com es diagnostica<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Per b\u00e9 que la majoria de canvis en la dimensi\u00f3, la forma i el color de les pigues es deu a un augment benigne en el nombre de c\u00e8l\u00b7lules pigmentades, cal examinar qualsevol piga que sembli anormal. Probablement el metge demanar\u00e0 informaci\u00f3 sobre els darrers canvis en la piga, juntament amb l\u2019historial familiar per avaluar el risc que presenta el pacient.<\/p>\n\n\n\n<p>Si no s\u2019hi troben m\u00e9s que canvis lleus, el metge \u00fanicament recomanar\u00e0, per regla general, fer-ne una vigil\u00e0ncia exhaustiva, que pot incloure fotografies per comparar-ne l\u2019evoluci\u00f3.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Altres_classes_de_pigues\"><\/span><strong>Altres classes de pigues<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Hi ha altres classes de pigues, com s\u00f3n els nevus displ\u00e0stics, els nevus blaus i els nevus halo:<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Sindrome_del_nevus_displastic\"><\/span><strong>S\u00edndrome del nevus displ\u00e0stic<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Unes quantes pigues grosses tenen contorns irregulars i vores difuses (<a href=\"https:\/\/cancerdepiel.org\/cancer-de-piel\/nevos-displasicos\">nevus displ\u00e0stics<\/a>). En aquest cas \u00e9s m\u00e9s probable que les pigues siguin malignes. Tendeixen a apar\u00e8ixer en fam\u00edlies amb un historial de m\u00faltiples nevus i melanoma maligne. Els pacients amb aquestes pigues se les han de fer analitzar de manera regular i, sovint, fer-ne comparar les imatges cl\u00edniques.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Nevus_halo\"><\/span><strong>Nevus halo<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>De vegades la pell que envolta les pigues s\u2019aclareix i la part central es torna p\u00e0l\u00b7lida. D\u2019altres, el nevus fins i tot desapareix completament. Bona part dels nevus halo s\u00f3n benignes. Hi ha persones amb nevus halo que tenen m\u00e9s probabilitat de desenvolupar una afecci\u00f3 cut\u00e0nia anomenada <a href=\"https:\/\/www.cun.es\/enfermedades-tratamientos\/enfermedades\/vitiligo\">vitiligen<\/a>. Es tracta d\u2019una anomalia en la pigmentaci\u00f3 de la pell, que es manifesta amb plaques m\u00e9s clares que la pell circumdant. Tanmateix, els pacients amb melanomes malignes gaireb\u00e9 mai tenen nevus halo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Nevus_blau\"><\/span><strong>Nevus blau<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>S\u00f3n pigues que es tornen blaves per la profunditat on es localitza el pigment (a la capa m\u00e9s pregona de la pell o l\u2019hipoderma). Solen ser comunes en infants indis, per\u00f2 ben rarament tenen import\u00e0ncia. Aix\u00ed i tot, cal que les examini el dermat\u00f2leg per descartar el melanoma.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Melanoma_juvenil_nevus_de_Spitz\"><\/span><strong>Melanoma juvenil (nevus de Spitz)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>En el <a href=\"https:\/\/pap.es\/articulo\/13951\/nevus-de-spitz\">nevus de Spitz<\/a> les c\u00e8l\u00b7lules pigmentades formen un tumor benigne, d\u2019un color que oscil\u00b7la entre marr\u00f3 i rosat. Aquesta malaltia afecta les criatures, normalment a la cara. Les c\u00e8l\u00b7lules que s\u2019observen al microscopi s\u2019assemblen a les c\u00e8l\u00b7lules malignes del melanoma, per\u00f2 amb un comportament benigne, i evolucionen de manera satisfact\u00f2ria despr\u00e9s del tractament.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Tres_bons_consells\"><\/span><strong>Tres bons consells<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cal evitar, tant com es pugui, l\u2019exposici\u00f3 innecess\u00e0ria a la llum solar, sobretot durant les dues hores abans i despr\u00e9s del migdia, quan els raigs del sol s\u00f3n m\u00e9s forts. Tamb\u00e9 s\u2019han de prevenir les cremades solars.<\/li>\n\n\n\n<li>Convindria protegir-se de la llum del sol amb roba i aplicar-se una crema solar sobre la pell exposada.<\/li>\n\n\n\n<li>Hem d\u2019observar amb regularitat les pigues i anar al metge perqu\u00e8 les examini. Cal recordar que hi ha zones que nosaltres mateixos no ens podem veure, perqu\u00e8 s\u00f3n llocs del cos poc accessibles, com ara l\u2019esquena o el cuir cabellut.<\/li>\n<\/ul>\n\n\n\n<p>Les pigues a les plantes dels peus o amb p\u00e8ls no s\u00f3n malignes, per\u00f2 tamb\u00e9 han de passar una revisi\u00f3 peri\u00f2dica.<\/p>\n\n\n\n<p>Bibliografia<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-the-skin-cancer-foundation wp-block-embed-the-skin-cancer-foundation\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/www.skincancer.org\/international\/lunares-atipicos-nevos-displasicos\/\n<\/div><\/figure>\n\n\n\n<figure class=\"wp-block-embed\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/www.msdmanuals.com\/es\/hogar\/trastornos-de-la-piel\/crecimientos-cut%C3%A1neos-benignos\/lunares\n<\/div><\/figure>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-msd-spain wp-block-embed-msd-spain\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/www.msd.es\/stories\/melanoma\/\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Qu\u00e8 \u00e9s una piga Les pigues (o els nevus melanoc\u00edtics, en termes m\u00e8dics) s\u00f3n taques an\u00f2males i molt freq\u00fcents formades per c\u00e8l\u00b7lules pigmentades a la pell. Aquestes c\u00e8l\u00b7lules s\u2019anomenen melan\u00f2cits. Molta gent t\u00e9 pigues de naixement, per\u00f2 tamb\u00e9 n\u2019hi ha que apareixen en el transcurs de la vida. Qu\u00e8 causa les pigues La majoria de [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":31881,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"class_list":["post-31885","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-salut"],"featured_image_src":"https:\/\/www.mgc.es\/wp-content\/uploads\/2024\/03\/shutterstock_613097849.jpg","author_info":{"display_name":"Revista Inter\u00e8s Mutu","author_link":"https:\/\/www.mgc.es\/ca\/blog\/author\/interesmutu\/"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Una piga que canvia - MGC M\u00fatua<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.mgc.es\/blog\/un-lunar-que-cambia\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Una piga que canvia - MGC M\u00fatua\" \/>\n<meta property=\"og:description\" content=\"Qu\u00e8 \u00e9s una piga Les pigues (o els nevus melanoc\u00edtics, en termes m\u00e8dics) s\u00f3n taques an\u00f2males i molt freq\u00fcents formades per c\u00e8l\u00b7lules pigmentades a la pell. Aquestes c\u00e8l\u00b7lules s\u2019anomenen melan\u00f2cits. Molta gent t\u00e9 pigues de naixement, per\u00f2 tamb\u00e9 n\u2019hi ha que apareixen en el transcurs de la vida. Qu\u00e8 causa les pigues La majoria de [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.mgc.es\/blog\/un-lunar-que-cambia\/\" \/>\n<meta property=\"og:site_name\" content=\"MGC M\u00fatua\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/mgcmutua\" \/>\n<meta property=\"article:published_time\" content=\"2024-06-06T11:08:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.mgc.es\/wp-content\/uploads\/2024\/03\/shutterstock_613097849.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"667\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Revista Inter\u00e8s Mutu\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@mgcmutua\" \/>\n<meta name=\"twitter:site\" content=\"@mgcmutua\" \/>\n<meta name=\"twitter:label1\" content=\"Escrit per\" \/>\n\t<meta name=\"twitter:data1\" content=\"Revista Inter\u00e8s Mutu\" \/>\n\t<meta name=\"twitter:label2\" content=\"Temps estimat de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minuts\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Una piga que canvia - MGC M\u00fatua","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.mgc.es\/blog\/un-lunar-que-cambia\/","og_locale":"ca_ES","og_type":"article","og_title":"Una piga que canvia - MGC M\u00fatua","og_description":"Qu\u00e8 \u00e9s una piga Les pigues (o els nevus melanoc\u00edtics, en termes m\u00e8dics) s\u00f3n taques an\u00f2males i molt freq\u00fcents formades per c\u00e8l\u00b7lules pigmentades a la pell. Aquestes c\u00e8l\u00b7lules s\u2019anomenen melan\u00f2cits. Molta gent t\u00e9 pigues de naixement, per\u00f2 tamb\u00e9 n\u2019hi ha que apareixen en el transcurs de la vida. 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