<?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>S1405-00992020000100050</article-id>
<article-id pub-id-type="doi">10.35366/92712</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Cáncer colorrectal hereditario: presentación sincrónica de cáncer colorrectal y colangiocarcinoma en un paciente con poliposis adenomatosa familiar]]></article-title>
<article-title xml:lang="en"><![CDATA[Hereditary colorectal cancer: synchronous presentation of colorectal cancer and cholangiocarcinoma in a patient with familial adenomatous polyposis]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chapa-Lobo]]></surname>
<given-names><![CDATA[Alberto Félix]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salgado-Cruz]]></surname>
<given-names><![CDATA[Luis Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Garza-Cantú]]></surname>
<given-names><![CDATA[Alan Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castaño-Eguía]]></surname>
<given-names><![CDATA[Mauricio David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Sotelo]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villafranca-Andino]]></surname>
<given-names><![CDATA[Roy Ismael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Christus Muguerza Hospital Alta Especialidad Departamento de Cirugía General ]]></institution>
<addr-line><![CDATA[Monterrey Nuevo León]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2020</year>
</pub-date>
<volume>42</volume>
<numero>1</numero>
<fpage>50</fpage>
<lpage>56</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-00992020000100050&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-00992020000100050&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-00992020000100050&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Los síndromes de poliposis gastrointestinales se caracterizan por la presencia de múltiples pólipos en el tubo digestivo que afectan preferentemente el colon y recto. Representan alrededor de 5% de los tipos de cáncer colorrectal, siendo los más comunes la poliposis adenomatosa familiar y el cáncer de colon no polipósico hereditario (síndrome de Lynch). Son un grupo de enfermedades de escasa incidencia con características muy variadas que precisan una correcta individualización para su tratamiento más adecuado. Dentro de los síndromes genéticos hay presentaciones con variaciones moleculares típicas que encasillan a los grupos más frecuentes; sin embargo, existe la posibilidad de que dichos síndromes muestren similitudes genéticas cuya predominancia determine la evolución y presentación de la enfermedad.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The gastrointestinal polyposis syndromes are characterized by the presence of multiple polyps in the digestive tract, affecting the colon and rectum in the most cases. Recognized family syndromes represent around 5% of colorectal cancers, the most common being familial adenomatose polyposis (FAP) and hereditary nonpolyposis colon cancer (Lynch syndrome). They are a group of diseases of low incidence with very varied characteristics, which require a correct individualization for their most appropriate treatment. Within the genetic syndromes, there are presentations with typical molecular variations that typecast the most frequent groups, however there is the possibility that these syndromes present genetic similarities whose predominance will determine the evolution and presentation of the disease.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Poliposis adenomatosa familiar]]></kwd>
<kwd lng="es"><![CDATA[síndrome de Lynch]]></kwd>
<kwd lng="es"><![CDATA[cáncer colorrectal hereditario]]></kwd>
<kwd lng="en"><![CDATA[Adenomatose polyposis]]></kwd>
<kwd lng="en"><![CDATA[Lynch syndrome]]></kwd>
<kwd lng="en"><![CDATA[hereditary colorectal cancer]]></kwd>
</kwd-group>
</article-meta>
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