<?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>2444-054X</journal-id>
<journal-title><![CDATA[Cirugía y cirujanos]]></journal-title>
<abbrev-journal-title><![CDATA[Cir. cir.]]></abbrev-journal-title>
<issn>2444-054X</issn>
<publisher>
<publisher-name><![CDATA[Academia Mexicana de Cirugía A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2444-054X2023000400451</article-id>
<article-id pub-id-type="doi">10.24875/ciru.22000197</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Agreement between incisional and excisional biopsies for hormone receptors and her2 in breast cancer]]></article-title>
<article-title xml:lang="es"><![CDATA[Concordancia de biopsia incisional y escisional en receptores hormonales y her2 en cáncer de mama]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Candanedo-Gonzalez]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cordova-Ramón]]></surname>
<given-names><![CDATA[Juan C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Smeke-Smeke]]></surname>
<given-names><![CDATA[Jessica]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valenzuela-Gonzalez]]></surname>
<given-names><![CDATA[Wilfredo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gamboa-Dominguez]]></surname>
<given-names><![CDATA[Armando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán Departmento de Patología ]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán Departmento de Patología ]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Anahuac Facultad de Medicina ]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma de Sinaloa Facultad de Medicina ]]></institution>
<addr-line><![CDATA[Culiacán Sinaloa]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán Departamento de Patología ]]></institution>
<addr-line><![CDATA[ Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2023</year>
</pub-date>
<volume>91</volume>
<numero>4</numero>
<fpage>451</fpage>
<lpage>456</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2444-054X2023000400451&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2444-054X2023000400451&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2444-054X2023000400451&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: Breast cancer is the leading cause of cancer mortality in Mexican women.  Objective: The objective of the study was to identify concordances among core needle biopsy (CNB) and excisional biopsies (EB) regarding diagnosis, hormonal receptors (HR), and human epidermal growth factor receptor 2 (Her2).  Materials and methods: Core number, demographic data, histological type, and treatment were documented for each sample. Reported HR and Her2 score from both samples were compiled.  Results: 70 women with both CNB/EB were included. Median age was 58 (36-87) years; initial diagnosis in CNB were invasive ductal 56 (80%), lobular 10 (14%), and mixed 4 (6%) carcinomas. Diagnostic agreement among CNB and EB was of 97%, k = 0.65. A concordance of 92% (k = 0.75), 75% (k = 0.26), and 67% (k = 0.46) was observed for estrogen receptors, progesterone receptors, and Her2 determinations, and positive predictive values in CNB were 0.96, 0.89, and 0.44, respectively.  Conclusion: HR and Her2 concordances using manual-immunohistochemistry (IHC) were found within the range of values obtained using automatized-IHC. When compared to tumor heterogeneity, technical/reading errors contribute more to discordances.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introduction: El cáncer de mama es la principal causa de mortalidad por cáncer en mujeres mexicanas.  Objetivo: Identificar la concordancia entre la biopsia con aguja de corte (BAC) y la biopsia escisional (BE) con respecto al diagnóstico, receptores hormonales (RH) y Her2.  Material y Métodos: Se registró el número de fragmentos cilíndricos, datos demográficos, tipo histológico y tratamiento. Se recopilaron resultados de RH y Her2.  Resultados: Se incluyeron 70 mujeres con mediana de edad de 58 años. El diagnóstico inicial en BAC fue carcinoma ductal invasivo 56 (80%), lobular 10 (14%) y mixtos 4 (6%). El acuerdo de diagnóstico entre BAC y BE fue del 97%, k = 0.65. Se observó una concordancia de 92% (k = 0.75), 75% (k = 0.26) y 67% (k = 0.46) para las determinaciones de receptor de estrógenos (RE), receptor de progesterona (RP) y Her2, y los valores predictivos positivos en BAC fueron 0.96, 0.89 y 0.44, respectivamente.  Conclusión: Los RH y la concordancia de Her2 mediante inmunohistoquímica (IHC) manual se encuentran dentro del rango de valores obtenidos mediante el uso de IHC automatizada. Los errores técnicos/de lectura contribuyeron más a discordancia que la heterogeneidad tumoral.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Concordance]]></kwd>
<kwd lng="en"><![CDATA[Core needle biopsy]]></kwd>
<kwd lng="en"><![CDATA[Breast cancer]]></kwd>
<kwd lng="en"><![CDATA[Hormonal receptors]]></kwd>
<kwd lng="en"><![CDATA[Her2]]></kwd>
<kwd lng="es"><![CDATA[Concordancia]]></kwd>
<kwd lng="es"><![CDATA[Biopsia con aguja gruesa]]></kwd>
<kwd lng="es"><![CDATA[Cáncer de mama]]></kwd>
<kwd lng="es"><![CDATA[Receptores hormonales]]></kwd>
<kwd lng="es"><![CDATA[Her2]]></kwd>
</kwd-group>
</article-meta>
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