<?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>0120-9957</journal-id>
<journal-title><![CDATA[Revista colombiana de Gastroenterología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. colomb. Gastroenterol.]]></abbrev-journal-title>
<issn>0120-9957</issn>
<publisher>
<publisher-name><![CDATA[Asociación Colombiana de Gastroenterología  ]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-99572020000400519</article-id>
<article-id pub-id-type="doi">10.22516/25007440.404</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Pólipo del colon que genera un síndrome de ball valve. Reporte de un caso (con video)]]></article-title>
<article-title xml:lang="en"><![CDATA[Ball Valve syndrome caused by a colon polyp. Case report (with video)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez]]></surname>
<given-names><![CDATA[Martín Alonso]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruiz]]></surname>
<given-names><![CDATA[Óscar Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Marulanda-Fernández]]></surname>
<given-names><![CDATA[Hernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Colombia  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Colombia  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>35</volume>
<numero>4</numero>
<fpage>519</fpage>
<lpage>521</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-99572020000400519&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-99572020000400519&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-99572020000400519&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La obstrucción intestinal es una patología potencialmente letal y cuyo tratamiento, por lo general, es quirúrgico. Presentamos el caso de un paciente con dolor abdominal y clínica de obstrucción intestinal recurrente, en quien se documenta, durante una colonoscopia, un gran pólipo pediculado que causaba obstrucciones parciales por el fenómeno de ball valve.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Intestinal obstruction is a potentially lethal pathology, and its treatment is usually surgical. The following is the case of a patient with abdominal pain and recurrent intestinal obstruction, in whom a large pediculated polyp that caused partial obstruction by Ball valve effect was observed during a colonoscopy.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Pólipo]]></kwd>
<kwd lng="es"><![CDATA[ball valve]]></kwd>
<kwd lng="es"><![CDATA[obstrucción intestinal]]></kwd>
<kwd lng="es"><![CDATA[polipectomía]]></kwd>
<kwd lng="en"><![CDATA[Polyp]]></kwd>
<kwd lng="en"><![CDATA[Ball Valve]]></kwd>
<kwd lng="en"><![CDATA[Bowel obstruction]]></kwd>
<kwd lng="en"><![CDATA[Polypectomy]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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