<?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>S1405-00992014000400214</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Prevalencia de tumores malignos primarios y metastásicos de intestino delgado]]></article-title>
<article-title xml:lang="en"><![CDATA[Prevalence of primary malignant and metastatic small bowel tumors]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Núñez Vidales]]></surname>
<given-names><![CDATA[Rodrigo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Ordaz]]></surname>
<given-names><![CDATA[José Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Estrada Castellanos]]></surname>
<given-names><![CDATA[Alicia]]></given-names>
</name>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Centro Médico Nacional Siglo XXI Servicio de Gastrocirugía, Hospital de Especialidades]]></institution>
<addr-line><![CDATA[ DF]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2014</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2014</year>
</pub-date>
<volume>36</volume>
<numero>4</numero>
<fpage>214</fpage>
<lpage>217</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-00992014000400214&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-00992014000400214&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-00992014000400214&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Introducción: Los tumores malignos de intestino delgado representan un 1-2% de todos los tumores gastrointestinales. Los síntomas son vagos y no se suele diagnosticarlos preoperatoriamente. El objetivo de este trabajo es determinar la prevalencia de estos tumores en pacientes sometidos a resección intestinal en un hospital de referencia. Material y métodos: Revisión de todos los casos de resección intestinal durante un periodo de 5 años para identifi car los tumores malignos de intestino delgado (primarios o metastásicos). Se analizaron el tipo histológico, la localización y las características. Resultados: Se realizó un total de 185 resecciones intestinales. Fueron identifi cados 15 (8%) tumores primarios y 10 metastásicos (5%) de intestino delgado. La mayoría de los pacientes estaban sintomáticos, y la hemorragia de tubo digestivo oculto fue el diagnóstico preoperatorio en el 54% de los pacientes. El tipo histológico más frecuente de los primarios fue el adenocarcinoma (8 pacientes), seguido por el tumor del estroma gastrointestinal (4 pacientes). El adenocarcinoma de colon fue el tumor metastásico más común. Conclusiones: Pese a ser poco frecuentes, los tumores de intestino delgado representaron el 14% de las resecciones intestinales realizadas en un hospital de tercer nivel.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Introduction: Small bowel malignant tumors represent about 1 to 2% of all gastrointestinal tumors. The associated symptoms are usually vague. Most of these tumors are not diagnosed preoperatively. The objective of this study is to address the prevalence of small bowel tumors in a population of patients subjected to intestinal resection in a reference hospital. Material and methods: Records of all patients treated in our hospital with intestinal resection in the past 5 years were reviewed to identify small bowel tumors (primary and metastatic to the small bowel). The clinical characteristics, location and histology type of the tumor were registered. Results: A total of 185 patients were treated with intestinal resection. Fifteen primary tumors 88%) and 10 metastatic tumors (5%) to small bowel were identifi ed. Most of the patients were symptomatic preoperatively. Occult intestinal bleeding was present in 54% of the patients. Adenocarcinoma was the most frequent diagnosis (8 patients), followed in frequency by gastrointestinal stromal tumors (4 patients). Colon adenocarcinoma was the most common metastatic tumor to the small bowel. Conclusions: Despite their low prevalence, small bowel tumors represented 14% of all intestinal resections performed in a third level hospital. The symptoms are usually vague and most of the patients are not diagnosed preoperatively.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Intestino delgado]]></kwd>
<kwd lng="es"><![CDATA[Tumores de intestino delgado]]></kwd>
<kwd lng="es"><![CDATA[Cirugía]]></kwd>
<kwd lng="en"><![CDATA[Small bowel]]></kwd>
<kwd lng="en"><![CDATA[Small bowel tumors]]></kwd>
<kwd lng="en"><![CDATA[Surgery]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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