<?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>1028-4818</journal-id>
<journal-title><![CDATA[Multimed]]></journal-title>
<abbrev-journal-title><![CDATA[Multimed]]></abbrev-journal-title>
<issn>1028-4818</issn>
<publisher>
<publisher-name><![CDATA[Centro Provincial de Información de Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1028-48182020000100190</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Sarcoma de ewing nasosinusal en la infancia]]></article-title>
<article-title xml:lang="en"><![CDATA[Nasosinusalewing sarcoma in childhood]]></article-title>
<article-title xml:lang="pt"><![CDATA[Sarcoma de ewing nasossinusal na infância]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fuentes Liens.]]></surname>
<given-names><![CDATA[Eduardo Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tornes Sabina.]]></surname>
<given-names><![CDATA[Kerer Laurentina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fuentes Tornes.]]></surname>
<given-names><![CDATA[Jessica Claudia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Ciencias Médicas de Granma Hospital General Universitario Carlos Manuel de Céspedes ]]></institution>
<addr-line><![CDATA[Bayamo Granma]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Escuela de Deportes Vicente Quesada Oconor  ]]></institution>
<addr-line><![CDATA[Bayamo Granma]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Facultad de Ciencias Médicas  ]]></institution>
<addr-line><![CDATA[Bayamo Granma]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2020</year>
</pub-date>
<volume>24</volume>
<numero>1</numero>
<fpage>190</fpage>
<lpage>199</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1028-48182020000100190&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1028-48182020000100190&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1028-48182020000100190&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  dentro de los tumores de cabeza y cuello, el Sarcoma de Ewing es uno de los menos frecuente, afecta la mandíbula y la maxila, pero es más raro aún en tejidos blandos originados en la cavidad nasal o los senos paranasales; comparten características con los tumores neuroectodérmicos primitivos. Se presentan habitualmente en niños y adultos jóvenes, presentándose de inicio con una gran agresividad.  Presentación de caso: Presentamos una niña de 4 años que acudió a consulta con una inflamación en el piso de fosa nasal derecha, sin fiebre, sin dolor, escasa rinorrea con obstrucción nasal derecha.  Discusión:  se realizó resonancia magnética visualizando una masa tumoral hacia el piso nasal derecho, de gran intensidad, isointenso y sin rotura de paredes del seno maxilar u otra estructura vecina. Se tomó muestra incisional para biopsia de la lesión que informa positivo a un sarcoma de Ewing.  Conclusiones:  se aplicó tratamiento con radioterapia y quimioterapia.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  within the head and neck tumors, Ewing's Sarcoma is one of the least frequent, it affects the jaw and maxilla, but it is even more rare in soft tissues originated in the nasal cavity or sinuses; share characteristics with primitive neuroectodermal tumors. They usually occur in children and young adults, presenting themselves with great aggressiveness.  Case presentation:  We present a 4-year-old girl who went to the office with an inflammation in the floor of the right nostril, without fever, without pain, poor rhinorrhea with right nasal obstruction.  Discussion:  MRI was performed visualizing a tumor mass towards the right nasal floor, of great intensity, isointense and without rupture of the walls of the maxillary sinus or other neighboring structure. Incisional sample was taken for biopsy of the lesion that positively reports Ewing's sarcoma.  Conclusions:  treatment with radiotherapy and chemotherapy was applied.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[RESUMO  Introdução:  nos tumores de cabeça e pescoço, o sarcoma de Ewing é um dos menos frequentes, afeta a mandíbula e a maxila, mas é ainda mais raro em tecidos moles originados na cavidade nasal ou seios da face; compartilham características com tumores neuroectodérmicos primitivos. Geralmente ocorrem em crianças e adultos jovens, apresentando-se com grande agressividade.  Apresentação do caso:  Apresentamos uma menina de 4 anos que foi ao consultório com inflamação no assoalho da narina direita, sem febre, sem dor, rinorréia ruim com obstrução nasal direita.  Discussão:  A RM foi realizada visualizando uma massa tumoral em direção ao assoalho nasal direito, de grande intensidade, isointensa e sem ruptura das paredes do seio maxilar ou de outra estrutura vizinha. Amostra incisional foi coletada para biópsia da lesão que relata positivamente o sarcoma de Ewing.  Conclusões: o tratamento com radioterapia e quimioterapia foi aplicado.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Sarcoma de Ewing]]></kwd>
<kwd lng="en"><![CDATA[Ewing Sarcoma]]></kwd>
<kwd lng="pt"><![CDATA[Sarcoma de Ewing.]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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