<?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>S0120-99572022000200220</article-id>
<article-id pub-id-type="doi">10.22516/25007440.761</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Refractory iron deficiency anemia as an early manifestation of autoimmune gastritis in a teenager]]></article-title>
<article-title xml:lang="es"><![CDATA[Anemia ferropénica refractaria como presentación temprana de gastritis autoinmune en un adolescente]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Beltrán]]></surname>
<given-names><![CDATA[María Camila]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vera-Chamorro]]></surname>
<given-names><![CDATA[José Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Espinosa]]></surname>
<given-names><![CDATA[Lina María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hani.]]></surname>
<given-names><![CDATA[Albis Cecilia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Los Andes  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Los Andes  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Universitario Fundación Santa Fe de Bogotá  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Pontificia Universidad Javeriana  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<volume>37</volume>
<numero>2</numero>
<fpage>220</fpage>
<lpage>224</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-99572022000200220&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-99572022000200220&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-99572022000200220&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Autoimmune gastritis is an underdiagnosed disease in the pediatric population due to the absence of specific signs and symptoms and late clinical manifestations. Iron deficiency anemia has recently been identified as an early hematological manifestation, allowing an early diagnostic approach. We present the case of a Colombian teenager, with no history of autoimmunity, with refractory iron deficiency. He underwent extension studies; biopsies and serology compatible with autoimmune gastritis were documented, requiring parenteral iron in its evolution. This pathology is underdiagnosed in our context since early diagnosis requires a high index of suspicion to prevent associated complications.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La gastritis autoinmune es una enfermedad subdiagnosticada en la población pediátrica. Lo anterior se debe a la ausencia de signos y síntomas específicos y manifestaciones clínicas tardías. Recientemente se ha identificado la anemia ferropénica como una manifestación hematológica precoz, lo que permite un enfoque diagnóstico temprano. Se presenta el caso de un adolescente colombiano, sin antecedentes de autoinmunidad, con ferropenia refractaria, en el que se realizaron estudios de extensión y se documentaron biopsias y serología compatible con gastritis autoinmune, con requerimiento de hierro parenteral en su evolución. Esta patología es subdiagnosticada en nuestro medio, ya que el diagnóstico temprano requiere un alto índice de sospecha, lo que permite la prevención de las complicaciones asociadas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Autoimmune gastritis]]></kwd>
<kwd lng="en"><![CDATA[iron deficiency anemia]]></kwd>
<kwd lng="en"><![CDATA[parietal cells]]></kwd>
<kwd lng="en"><![CDATA[oxyntic glands]]></kwd>
<kwd lng="en"><![CDATA[enterochromaffin cells]]></kwd>
<kwd lng="en"><![CDATA[pernicious anemia]]></kwd>
<kwd lng="en"><![CDATA[children]]></kwd>
<kwd lng="en"><![CDATA[teenagers]]></kwd>
<kwd lng="es"><![CDATA[Gastritis autoinmune]]></kwd>
<kwd lng="es"><![CDATA[anemia ferropénica]]></kwd>
<kwd lng="es"><![CDATA[células parietales]]></kwd>
<kwd lng="es"><![CDATA[glándulas oxínticas]]></kwd>
<kwd lng="es"><![CDATA[células enterocromafines]]></kwd>
<kwd lng="es"><![CDATA[anemia perniciosa]]></kwd>
<kwd lng="es"><![CDATA[niños]]></kwd>
<kwd lng="es"><![CDATA[adolescentes]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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