<?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>S1405-00992016000200078</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Linfoma plasmablástico anal. Reporte de dos casos]]></article-title>
<article-title xml:lang="en"><![CDATA[Anal plasmablastic lymphoma. Report of two cases]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Grijalva-Santana]]></surname>
<given-names><![CDATA[Cristina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[San Marcos-Romero]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez-Bobadilla]]></surname>
<given-names><![CDATA[Billy]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza-Ramírez]]></surname>
<given-names><![CDATA[Saulo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes-Hansen]]></surname>
<given-names><![CDATA[Milly Diorey]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cosme-Reyes]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Secretaría de Salud Hospital General de México Servicio de Cirugía Colorrectal]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Secretaría de Salud Hospital General de México ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Secretaría de Salud Hospital General de México Departamento de Cirugía Colorrectal]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Secretaría de Salud Hospital General de México Servicio de Patología]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Secretaría de Salud Hospital General de México ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2016</year>
</pub-date>
<volume>38</volume>
<numero>2</numero>
<fpage>78</fpage>
<lpage>82</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-00992016000200078&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-00992016000200078&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-00992016000200078&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El linfoma plasmablástico (LPB) es un tipo de linfoma de crecimiento rápido y agresivo que se considera una variante del no Hodgkin. El riesgo relativo de desarrollar este tipo de linfoma en pacientes con virus de inmunodeficiencia humana (VIH) positivos es de 80 a 110 veces mayor que en la población general. Los linfomas en sujetos VIH positivos también se han asociado fuertemente con infección por otros virus, lo que sugiere un papel importante de estos en la patogenia de los linfomas. Se identificaron dos individuos en el archivo de expedientes clínicos del Servicio de Coloproctología en el Hospital General de México con diagnóstico de LPB de la región anal. Se realizó una revisión de la historia y evolución clínica de estos dos casos, así como sus estudios de imagen; asimismo, se hizo una revisión de las laminillas complementada con reacciones de inmunohistoquímica. El LPB en el canal anal es una patología poco frecuente, con una mortalidad elevada dentro del primer año y una pobre respuesta al tratamiento con quimioterapia. Existen pocos casos reportados en la literatura mundial; nosotros presentamos los de estos dos pacientes en un periodo de un año. Este tipo de tumores suelen estar enmascarados por otras patologías anorrectales.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Plasmablastic lymphoma (PBL) is a type of lymphoma with fast and aggressive growth considered a variant of non-Hodgkin&#8217;s lymphoma. The relative risk of developing this type of lymphoma in human immunodeficiency virus (HIV) positive patients is 80 to 110 times higher than in the general population. Lymphomas in HIV-positive patients have also been strongly associated with virus infection, which suggests an important role of those in the pathogenesis of these lymphomas. Two patients diagnosed with PBL in the anal region were identified in the medical records of the Coloproctology Service of the Hospital General México. We review the clinical course of these patients, their imaging studies and pathology reports supplemented with immunohistochemical reactions. Plasmablastic lymphoma in the anal canal is a rare disease with high mortality in the first year and a poor response to chemotherapy. There are a few cases reported in the literature. We present the ones of these two patients diagnosed the same year. These types of tumors are often masked by other anorectal disorders.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Linfoma plasmablástico]]></kwd>
<kwd lng="es"><![CDATA[tumores poco frecuentes en el ano]]></kwd>
<kwd lng="en"><![CDATA[Plasmablastic lymphoma]]></kwd>
<kwd lng="en"><![CDATA[uncommon tumors in the anus]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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