<?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>0123-9015</journal-id>
<journal-title><![CDATA[Revista Colombiana de Cancerología]]></journal-title>
<abbrev-journal-title><![CDATA[rev.colomb.cancerol.]]></abbrev-journal-title>
<issn>0123-9015</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Cancerología E.S.E.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0123-90152019000100028</article-id>
<article-id pub-id-type="doi">10.35509/01239015.76</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Radioterapia neoadyuvante e intraoperatoria en sarcoma de muslo y región poplítea para salvamento de extremidad. Reporte de caso y revisión de la literatura]]></article-title>
<article-title xml:lang="en"><![CDATA[Preoperative and intraoperative radiotherapy for limb sparing surgical resection in a popliteal fossa sarcoma. Case report and review of the literature]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Contreras-Pérez]]></surname>
<given-names><![CDATA[Daniel Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lehmann-Mosquera]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Pablo Tobón Uribe  ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Cancerología  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2019</year>
</pub-date>
<volume>23</volume>
<numero>1</numero>
<fpage>28</fpage>
<lpage>34</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0123-90152019000100028&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0123-90152019000100028&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0123-90152019000100028&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los sarcomas de tejidos blandos de las extremidades necesitan para su manejo la realización de resecciones oncológicas amplias con el fin de lograr márgenes negativos. En ocasiones los casos con compromiso de estructuras neurovasculares y/u óseas requieren la amputación de la extremidad como única alternativa quirúrgica. Presentamos el caso de un paciente con diagnóstico de liposarcoma que comprometía la fosa poplítea y el paquete neurovascular. Recibió radioterapia neoadyuvante, resección compartimental y radioterapia intraoperatoria, que posibilitaron la conservación de la extremidad. La cirugía logró márgenes microscópicos libres, con una adecuada funcionalidad y sin recaída a los 42 meses de seguimiento.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The patients with soft tissue sarcomas of the extremities are best treated with wide local excisions, with resection of the primary tumor and normal tissue around the lesion, in order to achieve negative margins; usually when the nerves, the vessels or the bone are surrounded by the tumor, amputation is needed. We report the case of a patient with Liposarcoma in the popliteal fossa, with the tumor involving the nerve and popliteal vessels. The patient underwent to limb-sparing treatment, including preoperative radiotherapy, wide local excision and intraoperative radiotherapy, allowing to keep the extremity, with negative margins, acceptable function of the limb and without recurrence after 42 months of follow up.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Sarcoma]]></kwd>
<kwd lng="es"><![CDATA[Tejidos blandos]]></kwd>
<kwd lng="es"><![CDATA[Partes blandas]]></kwd>
<kwd lng="es"><![CDATA[Extremidades]]></kwd>
<kwd lng="es"><![CDATA[Radioterapia]]></kwd>
<kwd lng="es"><![CDATA[Terapia neoadyuvante]]></kwd>
<kwd lng="es"><![CDATA[Radioterapia ayuvante]]></kwd>
<kwd lng="es"><![CDATA[Tratamientos conservadores del órgano]]></kwd>
<kwd lng="en"><![CDATA[Sarcoma]]></kwd>
<kwd lng="en"><![CDATA[Soft Tissue Tumour]]></kwd>
<kwd lng="en"><![CDATA[Extremities]]></kwd>
<kwd lng="en"><![CDATA[Radiotherapy]]></kwd>
<kwd lng="en"><![CDATA[Neoadjuvant Therapy]]></kwd>
<kwd lng="en"><![CDATA[Radiation therapy Adjuvant]]></kwd>
<kwd lng="en"><![CDATA[Organ Sparing Treatments]]></kwd>
</kwd-group>
</article-meta>
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