<?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>0138-6557</journal-id>
<journal-title><![CDATA[Revista Cubana de Medicina Militar]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cub Med Mil]]></abbrev-journal-title>
<issn>0138-6557</issn>
<publisher>
<publisher-name><![CDATA[Centro Nacional de Información de Ciencias MédicasEditorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0138-65572021000100018</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Algunas especificidades en torno al cáncer de pulmón]]></article-title>
<article-title xml:lang="en"><![CDATA[Some specificities about lung cancer]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nazario Dolz]]></surname>
<given-names><![CDATA[Ana María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez Matos]]></surname>
<given-names><![CDATA[Dunia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castillo Toledo]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Miyares Peña]]></surname>
<given-names><![CDATA[María Victoria]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Garbey Nazario]]></surname>
<given-names><![CDATA[Anabell]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Provincial Docente &#8220;Saturnino Lora&#8221;  ]]></institution>
<addr-line><![CDATA[Santiago de Cuba ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2021</year>
</pub-date>
<volume>50</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0138-65572021000100018&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0138-65572021000100018&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0138-65572021000100018&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: El cáncer de pulmón predomina a nivel mundial, en la tercera edad de la vida y exhibe cifras bajas de supervivencia. Se realiza una búsqueda en bases bibliográficas biomédicas; se seleccionaron 25 de 58 artículos sobre el tema.  Objetivos:  Describir y analizar algunas características específicas del cáncer de pulmón con énfasis en aspectos epidemiológicos, etiopatogénicos y de la estadificación nodular linfática.  Desarrollo:  La clasificación tumor, ganglio, metástasis (TNM) para el cáncer de pulmón en su 8va versión, se publicó en 2016 y está vigente con nuevas categorías de los componentes tumor (T) y metástasis (M), así como la aparición de nuevos estadios, pero sin cambios en el componente ganglios (N); a pesar de lo cual la valoración nodular linfática del mediastino (pN) tiene implicaciones pronósticas y terapéuticas de gran importancia en los pacientes con cáncer de pulmón de células no pequeñas.  Conclusiones:  El cáncer de pulmón de células no pequeñas es el más frecuente y mortal a escala mundial, en una población ya envejecida, en la cual los factores moleculares, genéticos y ambientales juegan un papel en su desarrollo y son objeto de estudio, de ahí que la estadificación TNM sea de vital importancia al determinar las decisiones del tratamiento y del pronóstico. La correcta identificación de la afectación ganglionar es indispensable, puesto que, en ausencia de metástasis, marcará el pronóstico. La metodología utilizada para crear las diferentes ediciones de la clasificación TNM está en continua evolución, acorde al desarrollo científico contemporáneo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  Lung cancer is predominant worldwide, in the third age of life and exhibits low survival rates. A search is carried out in biomedical bibliographic databases; 25 of 58 articles on the topic were selected.  Objectives:  To describe and analyze some specific characteristics of lung cancer with an emphasis on epidemiological, etiopathogenic and lymphatic nodular staging aspects.  Development:  The TNM classification for lung cancer in its 8th version, was published in 2016 and is in force with new categories of components T and M, as well as the appearance of new stages but without changes in component N; Despite this, lymph node evaluation of the mediastinum (pN) has important prognostic and therapeutic implications in patients with non-small cell lung cancer.  Conclusions:  Non-small cell lung cancer is the most frequent and deadly worldwide, in an aging population, where molecular, genetic and environmental factors play a role in its development and continue to be the subject of studies; hence TNM staging is vital when determining treatment and prognosis decisions. The correct identification of lymph node involvement is essential, since in the absence of metastasis, it will determine the prognosis. The methodology used to create the different editions of the TNM classification is in continuous evolution, according to contemporary scientific development.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[cáncer de pulmón]]></kwd>
<kwd lng="es"><![CDATA[mortalidad]]></kwd>
<kwd lng="es"><![CDATA[etiopatogenia]]></kwd>
<kwd lng="es"><![CDATA[clasificación]]></kwd>
<kwd lng="es"><![CDATA[estadificación]]></kwd>
<kwd lng="es"><![CDATA[linfadenectomía]]></kwd>
<kwd lng="en"><![CDATA[lung cancer]]></kwd>
<kwd lng="en"><![CDATA[mortality]]></kwd>
<kwd lng="en"><![CDATA[etiopathogenesis]]></kwd>
<kwd lng="en"><![CDATA[classification]]></kwd>
<kwd lng="en"><![CDATA[staging]]></kwd>
<kwd lng="en"><![CDATA[lymphadenectomy]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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