<?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>1870-7203</journal-id>
<journal-title><![CDATA[Acta médica Grupo Ángeles]]></journal-title>
<abbrev-journal-title><![CDATA[Acta méd. Grupo Ángeles]]></abbrev-journal-title>
<issn>1870-7203</issn>
<publisher>
<publisher-name><![CDATA[Grupo Ángeles, Servicios de Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-72032017000400269</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Cáncer de mama triple negativo: frecuencia y características en el Hospital Ángeles Pedregal]]></article-title>
<article-title xml:lang="en"><![CDATA[Triple-negative breast cancer: frequency and characteristics at Hospital Ángeles Pedregal]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Álvarez]]></surname>
<given-names><![CDATA[Consuelo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romo-Aguirre]]></surname>
<given-names><![CDATA[Catalina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortiz-de Iturbide]]></surname>
<given-names><![CDATA[Cecilia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad La Salle Facultad Mexicana de Medicina ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Ángeles Pedregal Servicio de Patología ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Ángeles Pedregal Servicio de Mastografía y Clínica de Diagnóstico ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<volume>15</volume>
<numero>4</numero>
<fpage>269</fpage>
<lpage>274</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-72032017000400269&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-72032017000400269&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-72032017000400269&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Antecedentes: El cáncer de mama es la primera causa de muerte en la mujer en México; es una enfermedad heterogénea que exige un abordaje multidisciplinario.  Objetivo:  Revisar las características anatomopatológicas e inmunohistoquímicas de pacientes con cáncer de mama triple negativo descritas en la población mexicana y comparar con la muestra reportada de enero de 2009 a agosto de 2015 en el Hospital Ángeles Pedregal.  Material y métodos: Estudio transversal, descriptivo y retrolectivo de pacientes con diagnóstico de cáncer de mama triple negativo y estudio mastográfico en el periodo de enero de 2009 a agosto de 2015 en el Hospital Ángeles Pedregal.  Resultados: Se identificaron 3,290 especímenes con tejido mamario, 600 (18.24%) con diagnóstico histopatológico de cáncer de mama. Triple negativo, 58 casos (9.6 %). Edad promedio del diagnóstico: 56 años; tipo histológico: carcinoma ductal infiltrante sin patrón específico 80.13%; tamaño del tumor &lt; 20 mm: 55.31%. Mastografía, 32 casos: BIRADS 5 (6.25%), BIRADS 4 (75%), BIRADS 3 (18.75%).  Conclusión:  Este estudio mostró una edad promedio de diagnóstico de 56 años, adecuada correlación mastográfica e histopatológica, tamaño del tumor &lt; 2 cm en la mitad de los casos, con características similares a otros estudios reportados en población mexicana.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Background:  Breast cancer is the leading cause of death in women in Mexico; it is a heterogeneous disease that requires a multidisciplinary approach.  Objective:  To review the anatomopathological and immunohistochemical characteristics in triple-negative breast cancer patients described in the Mexican population and compare them with the sample reported from January 2009 to August 2015 at the Hospital Ángeles Pedregal.  Material and methods:  We conducted a cross-sectional, descriptive and retrospective study of patients with diagnosis of triple-negative breast cancer and mammography studies performed during the period from January 2009 through August 2015 at the Hospital Ángeles Pedregal.  Results:  We identified 3,290 breast tissue specimens, 600 (18.24%) with histopathologic diagnosis of breast cancer. Triple-negative breast cancer was reported in 58 cases (9.6%). Average age of diagnosis: 56 years; histological type: 80.13% infiltrating ductal carcinoma; average tumor size &lt; 20 mm: 55.31%. Mammography, 32 cases: BIRADS 5 (6.25%), BIRADS 4 (75%), BIRADS 3 (18.75%).  Conclusions: This study showed an average age of diagnosis of 56 years, suitable mammographic and histopathologic correlation, tumor size &lt; 2 cm in half the cases, with characteristics similar to other studies reported in Mexican population.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Cáncer de mama triple negativo]]></kwd>
<kwd lng="es"><![CDATA[mastografía]]></kwd>
<kwd lng="es"><![CDATA[BIRADS®]]></kwd>
<kwd lng="es"><![CDATA[población mexicana]]></kwd>
<kwd lng="en"><![CDATA[Triple-negative breast cancer]]></kwd>
<kwd lng="en"><![CDATA[mammography]]></kwd>
<kwd lng="en"><![CDATA[BIRADS®]]></kwd>
<kwd lng="en"><![CDATA[Mexican population]]></kwd>
</kwd-group>
</article-meta>
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