{"id":16234,"date":"2020-11-22T21:38:49","date_gmt":"2020-11-22T21:38:49","guid":{"rendered":"https:\/\/dermatly.com\/patologia-del-prurigo-pigmentosa\/"},"modified":"2026-03-10T16:04:08","modified_gmt":"2026-03-10T16:04:08","slug":"prurigo-pigmentosa-pathologie","status":"publish","type":"glossary","link":"https:\/\/dermatly.com\/de\/patologia-del-prurigo-pigmentosa\/","title":{"rendered":"Patolog\u00eda del prurigo pigmentosa"},"content":{"rendered":"<section class=\"textBlock\">\n<p>El <strong class=\"term\" data-term-id=\"243\">prurigo pigmentosa<\/strong> (PP) constituye una <span class=\"term\" data-term-id=\"60\">dermatosis<\/span> infrecuente, observada predominantemente en mujeres j\u00f3venes de ascendencia asi\u00e1tica. Su manifestaci\u00f3n cl\u00ednica clave es una erupci\u00f3n <span class=\"term\" data-term-id=\"1188\">papular<\/span> caracterizada por un intenso <span class=\"term\" data-term-id=\"244\">prurito<\/span>. Una vez que la lesi\u00f3n remite, deja como secuela una notoria <span class=\"term\" data-term-id=\"1521\">pigmentaci\u00f3n<\/span> <span class=\"term\" data-term-id=\"1343\">reticular<\/span> en la zona afectada.<\/p>\n<h2>Hallazgos Histopatol\u00f3gicos del Prurigo Pigmentosa<\/h2>\n<p>En la fase establecida del prurigo pigmentosa, el examen histopatol\u00f3gico revela un escaso <span class=\"term\" data-term-id=\"541\">infiltrado<\/span> de tipo <span class=\"term\" data-term-id=\"168\">liquenoide<\/span> que afecta el plexo superficial. Este infiltrado se acompa\u00f1a de <span class=\"term\" data-term-id=\"218\">paraqueratosis<\/span> (Figura 1). Las etapas posteriores de la enfermedad se caracterizan por la presencia de numerosos <span class=\"term\" data-term-id=\"1826\">melan\u00f3fagos<\/span> <span class=\"term\" data-term-id=\"52\">d\u00e9rmicos<\/span> (figura 2). El an\u00e1lisis a mayor magnificaci\u00f3n evidencia que esta reacci\u00f3n liquenoide se asocia a la presencia de <span class=\"term\" data-term-id=\"1069\">queratinocitos<\/span> <span class=\"term\" data-term-id=\"1624\">apopt\u00f3ticos<\/span> y <span class=\"term\" data-term-id=\"770\">necr\u00f3ticos<\/span> distribuidos por todos los estratos de la <span class=\"term\" data-term-id=\"85\">epidermis<\/span> (figura 3). Adicionalmente, es com\u00fan identificar foliculitis tipo <span class=\"term\" data-term-id=\"901\">supurativa<\/span>, donde los <span class=\"term\" data-term-id=\"1301\">fol\u00edculos<\/span> <span class=\"term\" data-term-id=\"122\">pilosos<\/span> frecuentemente albergan <span class=\"term\" data-term-id=\"935\">bacterias<\/span> (Figura 4).<\/p>\n<p>Durante las manifestaciones iniciales del PP, es posible observar una acumulaci\u00f3n significativa de <span class=\"term\" data-term-id=\"442\">neutr\u00f3filos<\/span> y <span class=\"term\" data-term-id=\"441\">eosin\u00f3filos<\/span>, pudiendo ocasionalmente generar <span class=\"term\" data-term-id=\"1937\">abscesos<\/span> intraepid\u00e9rmicos.<\/p>\n<p>Las caracter\u00edsticas <span class=\"term\" data-term-id=\"474\">histol\u00f3gicas<\/span> del prurigo pigmentosa a menudo se comparan con los hallazgos microsc\u00f3picos observados en la <span class=\"term\" data-term-id=\"234\">pitiriasis liquenoide<\/span>, lo que subraya la importancia del diagn\u00f3stico diferencial.<\/p>\n<section class=\"textBlock imageLinkBlockTitle\">\n<h2 class=\"colour--primary\">Patolog\u00eda Detallada del Prurigo Pigmentosa<\/h2>\n<\/section>\n<section class=\"imageLinkBlock\">\n<div class=\"flex\">\n<div class=\"imageLinkBlock__item__image\">\n                <img decoding=\"async\" src=\"https:\/\/dermatly.com\/wp-content\/uploads\/2020\/11\/prurigo-pigmentosa-fig-1__ProtectWyJQcm90ZWN0Il0_FocusFillWzI5NCwyMjIsIngiLDFd.jpg\" alt=\"Figura 1: Reacci\u00f3n liquenoide con paraqueratosis en prurigo pigmentosa.\"><figcaption>Figura 1<\/figcaption><\/div>\n<div class=\"imageLinkBlock__item__image\">\n                <img decoding=\"async\" src=\"https:\/\/dermatly.com\/wp-content\/uploads\/2020\/11\/prurigo-pigmentosa-fig-3__ProtectWyJQcm90ZWN0Il0_FocusFillWzI5NCwyMjIsIngiLDFd.jpg\" alt=\"Figura 2: Melan\u00f3fagos d\u00e9rmicos presentes en las fases tard\u00edas del prurigo pigmentosa.\"><figcaption>Figura 2<\/figcaption><\/div>\n<div class=\"imageLinkBlock__item__image\">\n                <img decoding=\"async\" src=\"https:\/\/dermatly.com\/wp-content\/uploads\/2020\/11\/prurigo-pigmentosa-fig-2__ProtectWyJQcm90ZWN0Il0_FocusFillWzI5NCwyMjIsIngiLDFd.jpg\" alt=\"Figura 3: Queratinocitos apopt\u00f3ticos y necr\u00f3ticos a trav\u00e9s de todos los niveles epid\u00e9rmicos.\"><figcaption>Figura 3<\/figcaption><\/div>\n<div class=\"imageLinkBlock__item__image\">\n                <img decoding=\"async\" src=\"https:\/\/dermatly.com\/wp-content\/uploads\/2020\/11\/prurigo-pigmentosa-fig-4__ProtectWyJQcm90ZWN0Il0_FocusFillWzI5NCwyMjIsIngiLDFd.jpg\" alt=\"Figura 4: Foliculitis supurativa con fol\u00edculos pilosos llenos de bacterias.\"><figcaption>Figura 4<\/figcaption><\/div>\n<\/p><\/div>\n<\/section>\n<div class=\"clearfix imageLinkBlock\"><\/div>\n<h2>Investigaciones Diagn\u00f3sticas Espec\u00edficas para el Prurigo Pigmentosa<\/h2>\n<p>Generalmente, el diagn\u00f3stico del prurigo pigmentosa se establece cl\u00ednicamente, por lo que no suelen ser necesarias pruebas complementarias especializadas para su confirmaci\u00f3n.<\/p>\n<div id=\"square-placement-country-holder\" class=\"country-dependent advert\">\n<div class=\"box-placement square-placement\">\n<div class=\"advert__frame\">\n                <!-- \/340621630\/dermnet_mobile_afterfirstsection_300x250 --><\/p>\n<div style=\"display: none;\" id=\"hidden-div-gpt-ad-1484122037505-8\" class=\"[ js-hideable ]\"><\/div>\n<p>                <script>\n                    if (ads_screenwidth < 780 ) {\n                        var inline = document.createElement(\"div\");\n                        var ad = document.createElement(\"div\");\n\n                        ad.id = 'div-gpt-ad-1484122037505-8';\n                        ad.style.height=\"250px\";\n                        ad.style.width=\"300px;\";\n\n                        inline.appendChild(ad);\n                        inline.className = \"inline\";\n                        var placeholder = document.getElementById(\"hidden-div-gpt-ad-1484122037505-8\");\n                        placeholder.parentNode.replaceChild(inline, placeholder);\n                        (function () {\n                            googletag.cmd.push(function () {\n                                googletag.display('div-gpt-ad-1484122037505-8');\n                            });\n                        })();\n                    }\n                <\/script>\n            <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<h2>Distinci\u00f3n Cl\u00ednica: Diagn\u00f3stico Diferencial del Prurigo Pigmentosa<\/h2>\n<ul>\n<li><strong>Pitiriasis liquenoide:<\/strong> Existe una semejanza notable tanto en la presentaci\u00f3n cl\u00ednica externa como en los hallazgos patol\u00f3gicos. Es crucial priorizar la correlaci\u00f3n cl\u00ednica para asegurar el diagn\u00f3stico certero.<\/li>\n<li><strong>Otros trastornos liquenoides:<\/strong> La diferenciaci\u00f3n requiere una evaluaci\u00f3n detallada y la correlaci\u00f3n rigurosa de la presentaci\u00f3n sintom\u00e1tica del paciente con las caracter\u00edsticas observables de otras patolog\u00edas similares.<\/li>\n<\/ul>\n<p>En resumen, el diagn\u00f3stico del prurigo pigmentosa combina la identificaci\u00f3n de sus lesiones cut\u00e1neas intensamente pruriginosas y la pigmentaci\u00f3n reticular post-resoluci\u00f3n, apoy\u00e1ndose en hallazgos histopatol\u00f3gicos espec\u00edficos para confirmar su naturaleza liquenoide y descartar afecciones semejantes.<\/p>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>El prurigo pigmentosa (PP) constituye una dermatosis infrecuente, observada predominantemente en mujeres j\u00f3venes de ascendencia asi\u00e1tica. Su manifestaci\u00f3n cl\u00ednica clave es una erupci\u00f3n papular caracterizada por un intenso prurito. Una vez que la lesi\u00f3n remite, deja como secuela una notoria pigmentaci\u00f3n reticular en la zona afectada. Hallazgos Histopatol\u00f3gicos del Prurigo Pigmentosa En la fase establecida [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":16239,"parent":0,"template":"","glossary-cat":[],"class_list":["post-16234","glossary","type-glossary","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.2 (Yoast SEO v27.1.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Patolog\u00eda del prurigo pigmentosa - Dermatly.com - El sitio de tu piel<\/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:\/\/dermatly.com\/de\/prurigo-pigmentosa-pathologie\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Patolog\u00eda del prurigo pigmentosa\" \/>\n<meta property=\"og:description\" content=\"El prurigo pigmentosa (PP) constituye una dermatosis infrecuente, observada predominantemente en mujeres j\u00f3venes de ascendencia asi\u00e1tica. Su manifestaci\u00f3n cl\u00ednica clave es una erupci\u00f3n papular caracterizada por un intenso prurito. Una vez que la lesi\u00f3n remite, deja como secuela una notoria pigmentaci\u00f3n reticular en la zona afectada. 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