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          "es" => "<p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">a&#41; M&#225;cula color marr&#243;n&#44; de contornos irregulares&#44; localizada en la cara interna del <span class="elsevierStyleItalic">hallux</span> derecho&#46; b&#41; Se observa lesi&#243;n a mayor aumento de contornos irregulares color marr&#243;n claro&#46;</p>"
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    "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">Un paciente de 40 a&#241;os de edad&#44; sin antecedentes patol&#243;gicos de relevancia&#44; consult&#243; por presentar una m&#225;cula de contornos irregulares&#44; color marr&#243;n claro&#44; de 3<span class="elsevierStyleHsp" style=""></span>&#215;<span class="elsevierStyleHsp" style=""></span>4<span class="elsevierStyleHsp" style=""></span>cm de di&#225;metro&#44; asintom&#225;tica&#44; localizada en la cara interna del <span class="elsevierStyleItalic">hallux</span> derecho&#44; de 6 meses de evoluci&#243;n &#40;<a class="elsevierStyleCrossRefs" href="#fig0005">figs&#46; 1 y 2</a>&#41;&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><elsevierMultimedia ident="fig0010"></elsevierMultimedia><p id="par0010" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">&#191;Cu&#225;l es su diagn&#243;stico&#63;</span></p><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0005">Diagn&#243;stico</span><p id="par0015" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleItalic">Tinea nigra&#46;</span></p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Comentario</span><p id="par0020" class="elsevierStylePara elsevierViewall">La <span class="elsevierStyleItalic">tinea nigra</span> es una micosis superficial causada por <span class="elsevierStyleItalic">Hortaea werneckii</span>&#44; end&#233;mica en pa&#237;ses tropicales y subtropicales&#46; Suele afectar m&#225;s com&#250;nmente a ni&#241;os y adultos j&#243;venes&#46; Cl&#237;nicamente se presenta como unas m&#225;culas unilaterales de color marr&#243;n&#44; de contornos irregulares y bien circunscritos&#44; predominantemente en las palmas y las plantas&#46; Son asintom&#225;ticos y tienen una evoluci&#243;n cr&#243;nica&#44; y pueden ser confundidas con lesiones melanoc&#237;ticas<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">1</span></a>&#46;</p><p id="par0025" class="elsevierStylePara elsevierViewall">Las caracter&#237;sticas dermatosc&#243;picas de la <span class="elsevierStyleItalic">tinea nigra</span> fueron descritas por Gupta et al&#46; en el a&#241;o 1997 como unas &#171;esp&#237;culas pigmentadas&#187;&#44; las cuales forman un patr&#243;n reticulado&#44; pudi&#233;ndose observar tambi&#233;n un punteado fino y unas bandas amarronadas tenues&#44; las cuales no siguen las crestas ni los surcos de los dermatoglifos<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">2</span></a>&#46; Tanto las bandas marron&#225;ceas como las esp&#237;culas pigmentadas se corresponden con hifas pigmentadas en el estrato corneo<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">3</span></a>&#46;</p><p id="par0030" class="elsevierStylePara elsevierViewall">Posteriormente&#44; Noguchi et al&#46; describieron un caso con un patr&#243;n paralelo de las crestas&#44; similar al observado en el melanoma acral&#44; con un diagn&#243;stico final de <span class="elsevierStyleItalic">tinea nigra&#44;</span> similar a nuestro caso cl&#237;nico&#46;</p><p id="par0035" class="elsevierStylePara elsevierViewall">Debido a dicha situaci&#243;n&#44; cuando una lesi&#243;n por una <span class="elsevierStyleItalic">tinea nigra</span> tenga un patr&#243;n dermatosc&#243;pico similar al melanoma acral &#40;paralelo de las crestas&#41;&#44; es recomendable realizar la prueba de hidr&#243;xido de potasio para terminar de corroborar si se trata de una micosis superficial <span class="elsevierStyleItalic">&#40;tinea nigra&#41;&#46;</span></p><p id="par0040" class="elsevierStylePara elsevierViewall">Como conclusi&#243;n&#44; consideramos de suma importancia el diagn&#243;stico dermatosc&#243;pico de toda lesi&#243;n pigmentada&#44; ya que aumentan de manera considerable la sensibilidad y la especificidad diagn&#243;stica&#46;</p><p id="par0045" class="elsevierStylePara elsevierViewall">Basados en nuestra experiencia y en la literatura&#44; aconsejamos en el caso de lesiones pigmentadas acrales con un patr&#243;n paralelo de las crestas&#44; como el caso de nuestro paciente&#44; realizar la prueba de hidr&#243;xido de potasio&#44; que permite llegar al diagn&#243;stico de una <span class="elsevierStyleItalic">tinea nigra</span> y evita la realizaci&#243;n de procedimientos invasivos innecesarios como biopsias<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">4</span></a>&#46;</p></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Conflicto de intereses</span><p id="par0050" class="elsevierStylePara elsevierViewall">Los autores declaran no tener ning&#250;n conflicto de intereses&#46;</p></span></span>"
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Dermatoscopia práctica
Dermatoscopia de tinea nigra
Tinea Nigra: Dermoscopic Findings
A. Label
Corresponding author
andreslabel@hotmail.com

Autor para correspondencia.
, J.J. Sole, M. Larralde
Servicio de Dermatología, Hospital Alemán, Ciudad Autónoma de Buenos Aires, Argentina
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    "textoCompleto" => "<span class="elsevierStyleSections"><p id="par0005" class="elsevierStylePara elsevierViewall">Un paciente de 40 a&#241;os de edad&#44; sin antecedentes patol&#243;gicos de relevancia&#44; consult&#243; por presentar una m&#225;cula de contornos irregulares&#44; color marr&#243;n claro&#44; de 3<span class="elsevierStyleHsp" style=""></span>&#215;<span class="elsevierStyleHsp" style=""></span>4<span class="elsevierStyleHsp" style=""></span>cm de di&#225;metro&#44; asintom&#225;tica&#44; localizada en la cara interna del <span class="elsevierStyleItalic">hallux</span> derecho&#44; de 6 meses de evoluci&#243;n &#40;<a class="elsevierStyleCrossRefs" href="#fig0005">figs&#46; 1 y 2</a>&#41;&#46;</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia><elsevierMultimedia ident="fig0010"></elsevierMultimedia><p id="par0010" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleBold">&#191;Cu&#225;l es su diagn&#243;stico&#63;</span></p><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0005">Diagn&#243;stico</span><p id="par0015" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleItalic">Tinea nigra&#46;</span></p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Comentario</span><p id="par0020" class="elsevierStylePara elsevierViewall">La <span class="elsevierStyleItalic">tinea nigra</span> es una micosis superficial causada por <span class="elsevierStyleItalic">Hortaea werneckii</span>&#44; end&#233;mica en pa&#237;ses tropicales y subtropicales&#46; Suele afectar m&#225;s com&#250;nmente a ni&#241;os y adultos j&#243;venes&#46; Cl&#237;nicamente se presenta como unas m&#225;culas unilaterales de color marr&#243;n&#44; de contornos irregulares y bien circunscritos&#44; predominantemente en las palmas y las plantas&#46; Son asintom&#225;ticos y tienen una evoluci&#243;n cr&#243;nica&#44; y pueden ser confundidas con lesiones melanoc&#237;ticas<a class="elsevierStyleCrossRef" href="#bib0025"><span class="elsevierStyleSup">1</span></a>&#46;</p><p id="par0025" class="elsevierStylePara elsevierViewall">Las caracter&#237;sticas dermatosc&#243;picas de la <span class="elsevierStyleItalic">tinea nigra</span> fueron descritas por Gupta et al&#46; en el a&#241;o 1997 como unas &#171;esp&#237;culas pigmentadas&#187;&#44; las cuales forman un patr&#243;n reticulado&#44; pudi&#233;ndose observar tambi&#233;n un punteado fino y unas bandas amarronadas tenues&#44; las cuales no siguen las crestas ni los surcos de los dermatoglifos<a class="elsevierStyleCrossRef" href="#bib0030"><span class="elsevierStyleSup">2</span></a>&#46; Tanto las bandas marron&#225;ceas como las esp&#237;culas pigmentadas se corresponden con hifas pigmentadas en el estrato corneo<a class="elsevierStyleCrossRef" href="#bib0035"><span class="elsevierStyleSup">3</span></a>&#46;</p><p id="par0030" class="elsevierStylePara elsevierViewall">Posteriormente&#44; Noguchi et al&#46; describieron un caso con un patr&#243;n paralelo de las crestas&#44; similar al observado en el melanoma acral&#44; con un diagn&#243;stico final de <span class="elsevierStyleItalic">tinea nigra&#44;</span> similar a nuestro caso cl&#237;nico&#46;</p><p id="par0035" class="elsevierStylePara elsevierViewall">Debido a dicha situaci&#243;n&#44; cuando una lesi&#243;n por una <span class="elsevierStyleItalic">tinea nigra</span> tenga un patr&#243;n dermatosc&#243;pico similar al melanoma acral &#40;paralelo de las crestas&#41;&#44; es recomendable realizar la prueba de hidr&#243;xido de potasio para terminar de corroborar si se trata de una micosis superficial <span class="elsevierStyleItalic">&#40;tinea nigra&#41;&#46;</span></p><p id="par0040" class="elsevierStylePara elsevierViewall">Como conclusi&#243;n&#44; consideramos de suma importancia el diagn&#243;stico dermatosc&#243;pico de toda lesi&#243;n pigmentada&#44; ya que aumentan de manera considerable la sensibilidad y la especificidad diagn&#243;stica&#46;</p><p id="par0045" class="elsevierStylePara elsevierViewall">Basados en nuestra experiencia y en la literatura&#44; aconsejamos en el caso de lesiones pigmentadas acrales con un patr&#243;n paralelo de las crestas&#44; como el caso de nuestro paciente&#44; realizar la prueba de hidr&#243;xido de potasio&#44; que permite llegar al diagn&#243;stico de una <span class="elsevierStyleItalic">tinea nigra</span> y evita la realizaci&#243;n de procedimientos invasivos innecesarios como biopsias<a class="elsevierStyleCrossRef" href="#bib0040"><span class="elsevierStyleSup">4</span></a>&#46;</p></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Conflicto de intereses</span><p id="par0050" class="elsevierStylePara elsevierViewall">Los autores declaran no tener ning&#250;n conflicto de intereses&#46;</p></span></span>"
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Article information
ISSN: 00017310
Original language: Spanish
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Idiomas
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