<?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>S1870-72032026000200159</article-id>
<article-id pub-id-type="doi">10.35366/122624</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Tromboembolia pulmonar incidental en un estudio de TC sin contraste: imagen de relleno hiperatenuante, signo intraluminal del defecto hiperdenso]]></article-title>
<article-title xml:lang="en"><![CDATA[Incidental pulmonary thromboembolism in a non-contrast CT study: hyperdense lumen sign, intraluminal sign of the hyperdense defect]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Motta Ramírez]]></surname>
<given-names><![CDATA[Gaspar Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valdés Gómez]]></surname>
<given-names><![CDATA[Alejandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cerda Sánchez]]></surname>
<given-names><![CDATA[Ana Paola]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García Barrios]]></surname>
<given-names><![CDATA[Grecia Ivonne]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vaca Reyes]]></surname>
<given-names><![CDATA[María Isabel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Angeles Pedregal Departamento de Radiología e Imagen ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Angeles Pedregal  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Angeles Pedregal  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Hospital Angeles Pedregal Departamento de Radiología e Imagen ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2026</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2026</year>
</pub-date>
<volume>24</volume>
<numero>2</numero>
<fpage>159</fpage>
<lpage>160</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-72032026000200159&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-72032026000200159&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-72032026000200159&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: A 59-year-old male with one day&#8217;s evolution of dyspnea was requested for a simple phase computed tomography of the chest. After being inconclusive, a thoracoabdominopelvic CT angiography and venography with extension to the lower limbs was requested to specify the clinical diagnostic suspicion of acute pulmonary thromboembolism (PTE), which showed extensive bilateral PTE with areas of hypoperfusion and deep vein thrombosis of the superficial femoral vein and the right popliteal vein.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[acute pulmonary thromboembolism]]></kwd>
<kwd lng="en"><![CDATA[non-contrast computed tomography]]></kwd>
<kwd lng="en"><![CDATA[hyperdense lumen sign]]></kwd>
<kwd lng="en"><![CDATA[peripheral opacity]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Morita]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Ueno]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Masukawa]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Suzuki]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Machida]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Fujimura]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hyperattenuating signs at unenhanced CT indicating acute vascular disease]]></article-title>
<source><![CDATA[Radiographics]]></source>
<year>2010</year>
<volume>30</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>111-25</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Motta-Ramírez]]></surname>
<given-names><![CDATA[GA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diagnóstico de tromboembolia pulmonar mediante angiotomografía computada]]></article-title>
<source><![CDATA[An Radiol Méx]]></source>
<year>2017</year>
<volume>16</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>227-50</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Guo]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Deng]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Xi]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Xu]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Chest non-contrasted computed tomography in detecting acute pulmonary thromboembolism: a single-center retrospective study]]></article-title>
<source><![CDATA[Exp Ther Med]]></source>
<year>2024</year>
<volume>28</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>304</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tatco]]></surname>
<given-names><![CDATA[VR]]></given-names>
</name>
<name>
<surname><![CDATA[Piedad]]></surname>
<given-names><![CDATA[HH]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The validity of hyperdense lumen sign in non-contrast chest CT scans in the detection of pulmonary thromboembolism]]></article-title>
<source><![CDATA[Int J Cardiovasc Imaging]]></source>
<year>2011</year>
<volume>27</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>433-40</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
