<?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>2565-005X</journal-id>
<journal-title><![CDATA[Gaceta mexicana de oncología]]></journal-title>
<abbrev-journal-title><![CDATA[Gac. mex. oncol.]]></abbrev-journal-title>
<issn>2565-005X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Oncología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2565-005X2025000500016</article-id>
<article-id pub-id-type="doi">10.24875/j.gamo.24000036</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Síndrome de vena cava superior por tumor de células germinales en adulto joven: reporte de caso]]></article-title>
<article-title xml:lang="en"><![CDATA[Superior vena cava syndrome due to germ cell tumor in a young adult: case report]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lara-Duck]]></surname>
<given-names><![CDATA[Manlio F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosales-Martínez]]></surname>
<given-names><![CDATA[Juan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mayek-Pérez]]></surname>
<given-names><![CDATA[Netzahualcoyotl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Clínica del Corazón Clínica del Corazón ]]></institution>
<addr-line><![CDATA[Tamps ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Escuela de Enfermería Dr. José Ángel Cadena y Cadena Escuela de Enfermería Dr. José Ángel Cadena y Cadena ]]></institution>
<addr-line><![CDATA[Tamps ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<volume>24</volume>
<fpage>16</fpage>
<lpage>23</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2565-005X2025000500016&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2565-005X2025000500016&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2565-005X2025000500016&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En el síndrome de la vena cava superior (SVCS) ocurre su obstrucción mecánica al formarse trombos venosos o la compresión extrínseca por tumores intratorácicos. Hombre (24 años), cara y miembro torácico izquierdo con edema, distensión de venas torácicas y tos (tres meses). Los marcadores inmunohistoquímicos PAN-Ck, vimentina, CD45, CD3, CD20, SALL4 y KI-67 positivos. Diagnóstico de SVCS por neoplasia germinal (7 cm). El diagnóstico de SVCS se basó en el edema facial y de miembro torácico superior, y la distensión de las venas torácicas. Ocurrió obstrucción mecánica (hemoconcentración e hipercoagulabilidad) y alteración leucocitaria al tratar el SVCS con quimioterapia.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In superior vena cava syndrome (SVCS), mechanical obstruction occurs due to the formation of venous thrombi or extrinsic compression by intrathoracic tumors. Male (24 years-old) with face and left thoracic limb with edema, distension of thoracic veins and cough (three months). The immunohistochemical markers PAN-Ck, vimentin, CD45, CD3, CD20, SALL4 and KI-67 were positive. Diagnosis of SVCS due to germinal neoplasia (7 cm). The diagnosis of SVCS was based on facial and upper thoracic limb edema, and distension of the thoracic veins. Mechanical obstruction (hemoconcentration and hypercoagulability) and leukocyte alteration occurred when SVCS was treated with chemotherapy.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Síndrome de vena cava]]></kwd>
<kwd lng="es"><![CDATA[Adulto joven]]></kwd>
<kwd lng="es"><![CDATA[Panel inmunohistoquímico]]></kwd>
<kwd lng="es"><![CDATA[Reporte de caso]]></kwd>
<kwd lng="es"><![CDATA[Tumor de células germinales]]></kwd>
<kwd lng="en"><![CDATA[Vena cava syndrome]]></kwd>
<kwd lng="en"><![CDATA[Young adult]]></kwd>
<kwd lng="en"><![CDATA[Immunohistochemical panel]]></kwd>
<kwd lng="en"><![CDATA[Case report]]></kwd>
<kwd lng="en"><![CDATA[Germ cell tumor]]></kwd>
</kwd-group>
</article-meta>
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