<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1688-1249</journal-id>
<journal-title><![CDATA[Archivos de Pediatría del Uruguay]]></journal-title>
<abbrev-journal-title><![CDATA[Arch. Pediatr. Urug.]]></abbrev-journal-title>
<issn>1688-1249</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Uruguaya de Pediatría]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1688-12492023000101303</article-id>
<article-id pub-id-type="doi">10.31134/ap.94.1.14</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Tumor de Askin: un tumor infrecuente de la pared torácica]]></article-title>
<article-title xml:lang="en"><![CDATA[Askin tumor: a rare tumor of the chest wall]]></article-title>
<article-title xml:lang="pt"><![CDATA[Tumor de Askin: um tumor raro da parede torácica]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pons]]></surname>
<given-names><![CDATA[Sara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ainsa]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barona]]></surname>
<given-names><![CDATA[Pascual]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vizuete]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Universitario Dr. Peset Servicio Pediatría ]]></institution>
<addr-line><![CDATA[Valencia ]]></addr-line>
<country>Spain</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,CS Padre Jofré EAP ]]></institution>
<addr-line><![CDATA[Valencia ]]></addr-line>
<country>España</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Universitario Dr. Peset. Servicio Radiodiagnóstico ]]></institution>
<addr-line><![CDATA[Valencia ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<volume>94</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_arttext&amp;pid=S1688-12492023000101303&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_abstract&amp;pid=S1688-12492023000101303&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_pdf&amp;pid=S1688-12492023000101303&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El tumor de Askin o tumor primitivo neuroectodérmico es una neoplasia de células pequeñas redondas que se origina de los tejidos blandos de la pared torácica, probablemente a partir de células embrionarias que migran de la cresta neural. Son tumores muy agresivos que metastatizan rápidamente y de forma diseminada. Clínicamente, los pacientes presentan una masa de tejidos blandos en la pared del tórax que puede cursar o no con dolor. Otras manifestaciones incluyen disnea, tos, pérdida de peso, síndrome de Horner y adenopatías regionales. La radiografía de tórax muestra una masa heterogénea extrapulmonar, por lo general de gran tamaño, que puede opacificar completamente el hemitórax. El pronóstico del tumor de Askin es pobre; sin embargo, el uso combinado de quimioterapia, cirugía y radiación ha mejorado el resultado de forma drástica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Summary: Askin tumor or primitive neuroectodermal tumor is a small round cells&#8217; neoplasia, which originates in the chest&#8217;s soft tissues probably from embryonic cells that migrate from the neural crest. They are very aggressive tumors that metastasize and disseminate quickly. Clinically, patients show a soft tissue mass in the chest that may or may not be accompanied by pain. Other manifestations include dyspnea, cough, weight loss, Horner syndrome and regional lymphadenopathy. Chest radiographies show a usually large extrapulmonary heterogeneous mass, which can completely opacify the hemithorax. The prognosis is poor; however, the combined use of chemotherapy, surgery and radiation has improved results dramatically.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo: O tumor de Askin ou tumor neuroectodérmico primitivo é uma neoplasia de pequenas células redondas que se origina dos tecidos moles da parede torácica, provavelmente de células embrionárias que tem migrado da crista neural. São tumores muito agressivos que metastatizam e se disseminam rapidamente. Clinicamente, os pacientes apresentam uma massa de partes moles na parede torácica que pode ou não causar dor. Outras manifestações incluem dispneia, tosse, perda de peso, síndrome de Horner e linfadenopatia regional. A radiografia de tórax mostra uma massa extrapulmonar heterogênea, geralmente grande, que pode opacar completamente o hemitórax. O prognóstico do tumor de Askin é ruim; no entanto, o uso combinado de quimioterapia, cirurgia e radiação tem melhorado drasticamente o resultado.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Tumor Askin]]></kwd>
<kwd lng="es"><![CDATA[Pared torácica]]></kwd>
<kwd lng="es"><![CDATA[Radiología]]></kwd>
<kwd lng="en"><![CDATA[Askin&#8217;s tumor]]></kwd>
<kwd lng="en"><![CDATA[Thoracic wall]]></kwd>
<kwd lng="en"><![CDATA[Radiology]]></kwd>
<kwd lng="pt"><![CDATA[Tumor de Askin]]></kwd>
<kwd lng="pt"><![CDATA[Parede torácica]]></kwd>
<kwd lng="pt"><![CDATA[Radiologia]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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