<?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>2444-054X</journal-id>
<journal-title><![CDATA[Cirugía y cirujanos]]></journal-title>
<abbrev-journal-title><![CDATA[Cir. cir.]]></abbrev-journal-title>
<issn>2444-054X</issn>
<publisher>
<publisher-name><![CDATA[Academia Mexicana de Cirugía A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2444-054X2021000200248</article-id>
<article-id pub-id-type="doi">10.24875/ciru.20000061</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Sarcoma fibromixoide de bajo grado como contenido de hernia perineal. Reporte de un caso]]></article-title>
<article-title xml:lang="en"><![CDATA[Low-grade fibromyxoid sarcoma as a content of perineal hernia. A case report]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Auria-Aspiazu]]></surname>
<given-names><![CDATA[Danna]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Parrales-Calderón]]></surname>
<given-names><![CDATA[Omar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moncayo-Asnalema]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Oncológico Nacional Dr. Juan Tanca Marengo Servicio de Cirugía General ]]></institution>
<addr-line><![CDATA[Guayaquil ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital de Especialidades Dr. Abel Gilbert Pontón Servicio de Coloproctología ]]></institution>
<addr-line><![CDATA[Guayaquil ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital de Especialidades Dr. Abel Gilbert Pontón Servicio de Cirugía General ]]></institution>
<addr-line><![CDATA[Guayaquil ]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2021</year>
</pub-date>
<volume>89</volume>
<numero>2</numero>
<fpage>248</fpage>
<lpage>251</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2444-054X2021000200248&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2444-054X2021000200248&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2444-054X2021000200248&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes: El sarcoma fibromixoide de bajo grado es una neoplasia rara de histología someramente benigna, pero con un comportamiento agresivo metastásico tardío. Las hernias perineales son de presentación inusitada y no existen más de 100 casos reportados en la literatura mundial.  Discusión: La presentación de esta neoplasia fibroblástica es poco frecuente, y aún más como contenido de una hernia perineal primaria.  Conclusión: Es una neoplasia infrecuente que se presenta en aproximadamente el 0.7% de los casos, con comportamiento agresivo metastásico y con necesidad de tratamiento adyuvante.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Low-grade fibromyxoid sarcoma is a rare neoplasm with apparently benign histology but with late aggressive metastatic behavior. The perineal hernias are unusual, there are no more than 100 cases reported in the world literature.  Discussion: The presentation of this fibroblastic neoplasm is rare and makes it even more rare if it is as the content of a primary perineal hernia.  Conclusion: It is an infrequent neoplasm that occurs in approximately 0.7% of all cases, with aggressive metastatic behavior and in need of adjuvant treatment.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Hernia perineal]]></kwd>
<kwd lng="es"><![CDATA[Sarcoma fibromixoide]]></kwd>
<kwd lng="es"><![CDATA[Sarcoma fibromixoide de bajo grado]]></kwd>
<kwd lng="es"><![CDATA[Tejidos blandos]]></kwd>
<kwd lng="en"><![CDATA[Perineal hernia]]></kwd>
<kwd lng="en"><![CDATA[Fibromyxoid sarcoma]]></kwd>
<kwd lng="en"><![CDATA[Low-grade fibromyxoid sarcoma]]></kwd>
<kwd lng="en"><![CDATA[Soft tissues]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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