<?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>1405-0099</journal-id>
<journal-title><![CDATA[Cirujano general]]></journal-title>
<abbrev-journal-title><![CDATA[Cir. gen]]></abbrev-journal-title>
<issn>1405-0099</issn>
<publisher>
<publisher-name><![CDATA[Asociación Mexicana de Cirugía General A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-00992019000300191</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[GIST en segunda porción de duodeno, abordaje quirúrgico, reporte de caso y revisión de literatura]]></article-title>
<article-title xml:lang="en"><![CDATA[GIST in second portion of duodenum, surgical approach, case report and literature review]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vargas-Ávila]]></surname>
<given-names><![CDATA[Arcenio Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes-García]]></surname>
<given-names><![CDATA[Víctor Gibran]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres-Silva]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva-González]]></surname>
<given-names><![CDATA[Sergio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vargas-Flores]]></surname>
<given-names><![CDATA[Julián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lombardini-Tolentino]]></surname>
<given-names><![CDATA[Pedro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado Hospital Regional &#8220;General Ignacio Zaragoza&#8221; Servicio de Cirugía General]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado Hospital Regional &#8220;General Ignacio Zaragoza&#8221; Servicio de Cirugía General]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado Hospital Regional &#8220;General Ignacio Zaragoza&#8221; Servicio de Oncología Quirúrgica]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<volume>41</volume>
<numero>3</numero>
<fpage>191</fpage>
<lpage>201</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-00992019000300191&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-00992019000300191&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-00992019000300191&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Los tumores del estroma gastrointestinal (GIST) son las neoplasias mesenquimales más comunes, aunque las tasas anuales de incidencia reportadas en todo el mundo son inferiores a 20 por millón. Estos tumores constituyen una enfermedad gastrointestinal primaria que puede surgir en cualquier parte del tracto digestivo en adultos. Las lesiones duodenales representan alrededor del 3 al 5%. Aunque los tumores del estroma gastrointestinal duodenales son relativamente raros, representan casi 30% de todos los tumores primarios del duodeno, se originan con mayor frecuencia en la segunda porción del duodeno, seguida en orden por la tercera, cuarta y primera porción. Se presenta el caso de una paciente de 54 años de edad con antecedente de neurofibromatosis, la cual presentó episodios de sangrado de tres años de evolución, con diagnóstico de pólipo duodenal; el estudio histopatológico reportó tumor estromal gastrointestinal con un estudio inmunohistoquímico que fue positivo para CD117, CD34 y DOGL, con una cuenta de menos de dos mitosis/ 50 CAP. Se decidió el manejo quirúrgico, se identificó un tumor de 3 cm en la pared lateral del duodeno en la segunda porción, se realizó resección en cuña y cierre primario en dos líneas de sutura. La resección local es apropiada cuando es factible y la pancreaticoduodenectomía debe reservarse para lesiones que no son susceptibles de resección local.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Gastrointestinal stromal tumors (GIST) are the most common mesenchymal neoplasms, although annual reported incidence rates worldwide are less than 20 per million. These tumors are a primary gastrointestinal disease that can arise anywhere in the digestive tract in adults. Duodenal lesions represent approximately 3 to 5%, although duodenal gastrointestinal stromal tumors are relatively rare, they account for almost 30% of all primary tumors of the duodenum, they originate most frequently in the second portion of the duodenum, followed in order by the third, fourth and first portion. We present the case of a 54-year-old patient with a history of neurofibromatosis, which occurred with episodes of bleeding of three years of evolution, with diagnosis of duodenal polyp; the histopathological study reported gastrointestinal stromal tumor, with an immunohistochemical study that was positive for CD117, CD34 and DOGL, with an account of less than 2 mitosis / 50 CAP. Surgical management was decided, a 3-cm tumor was identified in the lateral wall of the duodenum. In the second portion, wedge resection and primary closure were performed in two suture lines. Local resection is appropriate when feasible and pancreaticoduodenectomy should be reserved for lesions that are not amenable to local resection.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Tumor del estroma gastrointestinal]]></kwd>
<kwd lng="es"><![CDATA[cirugía]]></kwd>
<kwd lng="es"><![CDATA[duodenopancrea-tectomía]]></kwd>
<kwd lng="es"><![CDATA[márgenes de resección]]></kwd>
<kwd lng="en"><![CDATA[Gastrointestinal stromal tumor]]></kwd>
<kwd lng="en"><![CDATA[surgery]]></kwd>
<kwd lng="en"><![CDATA[pancreaticoduode-nectomy]]></kwd>
<kwd lng="en"><![CDATA[resection margins]]></kwd>
</kwd-group>
</article-meta>
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