<?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>0120-2448</journal-id>
<journal-title><![CDATA[Acta Medica Colombiana]]></journal-title>
<abbrev-journal-title><![CDATA[Acta Med Colomb]]></abbrev-journal-title>
<issn>0120-2448</issn>
<publisher>
<publisher-name><![CDATA[Asociacion Colombiana de Medicina Interna]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-24482024000400008</article-id>
<article-id pub-id-type="doi">10.36104/amc.2024.3259</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Vascular crisscrossing. May-Thurner syndrome as the cause of a venous thromboembolism]]></article-title>
<article-title xml:lang="es"><![CDATA[Entrelazo vascular. Síndrome de May-Thurner como causante de tromboembolia venosa]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vargas-Plazas]]></surname>
<given-names><![CDATA[Eduard Orlando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reales-Acuña]]></surname>
<given-names><![CDATA[Milena Luz]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva-Sánchez]]></surname>
<given-names><![CDATA[Olivia Del Carmen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Díaz-Ariza]]></surname>
<given-names><![CDATA[Luis Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Caro-Angulo]]></surname>
<given-names><![CDATA[María Paula]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Libre  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Organización Clínica General del Norte-Zentria  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af3">
<institution><![CDATA[,Especialista en Medicina Interna y Epidemiología  ]]></institution>
<addr-line><![CDATA[Barranquilla ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Especialista en Epidemiólogía  ]]></institution>
<addr-line><![CDATA[Villavicencio ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<volume>49</volume>
<numero>4</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-24482024000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-24482024000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-24482024000400008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract May-Thurner syndrome (MTS), also known as Cockett's syndrome, is an anatomical-pathological condition that leads to obstructed venous flow due to external compression on the iliocaval venous area by the right common iliac artery (RCIA) and the lower lumbar spine (usually the 5th lumbar vertebra). It can be asymptomatic and undetected throughout life or cause vascular morbidity, including deep vein thrombosis (DVT), especially reported in women of reproductive age. We report the case of an older woman diagnosed with an unprovoked DVT, a pulmonary thromboembolism (PTE) found on complementary tests and thromboses of the iliac and left iliofemoral veins, with suspected MTS on thoracoabdominal angiography tomography. This was confirmed through an endovascular study and treated endovascularly and medically. This report highlights an underdiagnosed cause of VTE in an unusual age group. (Acta Med Colomb 2024; 49. DOI: https://doi.org/10.36104/amc.2024.3259).]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El síndrome de May-Thurner (SMT), también llamado síndrome de Cockett, es una condición anatomopatológica que conduce a obstrucción del flujo venoso debido a compresión externa en la zona venosa iliocava, por parte de la arteria ilíaca común derecha (AICD o RICA en inglés) y la columna lumbar inferior, generalmente a nivel de la quinta vértebra lumbar. Puede ser asintomática y desapercibida durante la vida, o causar morbilidad vascular, incluyendo trombosis venosa profunda (TVP), descrita sobre todo en mujeres en etapa fértil. Se reporta caso de una mujer añosa, con diagnóstico de TVP no provocado, hallazgo de Tromboembolismo Pulmonar (TEP) en estudios complementarios y de trombosis en vena iliaca y vena ileofemoral izquierda. Se sospechó SMT a través de una angiotomografía toracoabdominal, la cual se confirmó por estudio endovascular, seguido de tratamiento por misma vía y manejo médico. El reporte destaca una causa subdiagnosticada de TEV en un grupo etario inusual. (Acta Med Colomb 2024; 49. DOI: https://doi.org/10.36104/amc.2024.3259).]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[May-Thurner syndrome]]></kwd>
<kwd lng="en"><![CDATA[Cockett's syndrome]]></kwd>
<kwd lng="en"><![CDATA[venous compression syndrome]]></kwd>
<kwd lng="en"><![CDATA[deep vein thrombosis]]></kwd>
<kwd lng="en"><![CDATA[pulmonary thromboembolism]]></kwd>
<kwd lng="es"><![CDATA[síndrome de May-Thurner]]></kwd>
<kwd lng="es"><![CDATA[síndrome de Cockett]]></kwd>
<kwd lng="es"><![CDATA[síndrome venoso compresivo]]></kwd>
<kwd lng="es"><![CDATA[trombosis venosa profunda]]></kwd>
<kwd lng="es"><![CDATA[tromboembolismo pulmonar]]></kwd>
</kwd-group>
</article-meta>
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