<?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>2444-054X</journal-id>
<journal-title><![CDATA[Cirugía y cirujanos]]></journal-title>
<abbrev-journal-title><![CDATA[Cir. cir.]]></abbrev-journal-title>
<issn>2444-054X</issn>
<publisher>
<publisher-name><![CDATA[Academia Mexicana de Cirugía A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2444-054X2020000700098</article-id>
<article-id pub-id-type="doi">10.24875/ciru.20001718</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Sarcoma indiferenciado primario de aurícula izquierda]]></article-title>
<article-title xml:lang="en"><![CDATA[Primary undifferentiated sarcoma of left atrium]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Picón-Jaimes]]></surname>
<given-names><![CDATA[Yelson A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortega-Uribe]]></surname>
<given-names><![CDATA[Leec F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Orozco-Chinome]]></surname>
<given-names><![CDATA[Javier E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Molina-Franky]]></surname>
<given-names><![CDATA[Jessica S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Franky-Rojas]]></surname>
<given-names><![CDATA[Mabel P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Red Salud Servicio de Consulta Externa ]]></institution>
<addr-line><![CDATA[Santiago ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Clínica Chicamocha Servicio de Cuidados Intensivos ]]></institution>
<addr-line><![CDATA[Bucaramanga ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Red Salud Servicio de Consulta Externa ]]></institution>
<addr-line><![CDATA[Santiago ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad de Boyacá Programa de Medicina ]]></institution>
<addr-line><![CDATA[Tunja ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad de Boyacá División de Acreditación ]]></institution>
<addr-line><![CDATA[Tunja ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<volume>88</volume>
<fpage>98</fpage>
<lpage>101</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2444-054X2020000700098&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2444-054X2020000700098&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2444-054X2020000700098&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El objetivo es ilustrar al lector sobre un tumor infrecuente en la literatura médica y resumir los conocimientos actuales que se tienen sobre esta patología.  Caso clínico: Reportamos el caso de un varón en la quinta década de la vida, a quien se realizó ecocardiograma transtorácico por deterioro de la clase funcional. La ultrasonografía evidenció un tumor que ocupaba el 95% de la aurícula izquierda, con compromiso hemodinámico e hipertensión pulmonar grave. Luego de estudios de extensión, fue llevado a cirugía para extracción de la masa por esternotomía media. La patología reveló sarcoma de alto grado indiferenciado sin compromiso linfovascular.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract This text aimed to illustrate the reader about one of the most infrequent tumors in the medical literature and discuss based on current literature what is known to date of this pathology.  Case report: We report the case of a male in the fifth decade of life, who underwent transthoracic echocardiography due to impairment of the functional class. Ultrasound showed tumor lesion that occupied 95% of the left atrium, with hemodynamic compromise and severe pulmonary hypertension. After extension studies, he was taken to surgery with total mass extraction by middle stereotomy. The pathology revealed undifferentiated high-grade sarcoma without lymphovascular involvement.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Atrios cardiacos]]></kwd>
<kwd lng="es"><![CDATA[Insuficiencia cardiaca]]></kwd>
<kwd lng="es"><![CDATA[Neoplasia]]></kwd>
<kwd lng="es"><![CDATA[Sarcoma]]></kwd>
<kwd lng="en"><![CDATA[Heart atria]]></kwd>
<kwd lng="en"><![CDATA[Heart failure]]></kwd>
<kwd lng="en"><![CDATA[Neoplasms]]></kwd>
<kwd lng="en"><![CDATA[Sarcoma]]></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[Ekmektzoglou]]></surname>
<given-names><![CDATA[KA]]></given-names>
</name>
<name>
<surname><![CDATA[Samelis]]></surname>
<given-names><![CDATA[GF]]></given-names>
</name>
<name>
<surname><![CDATA[Xanthos]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Heart and tumors:location, metastasis, clinical manifestations, diagnostic approaches and therapeutic considerations]]></article-title>
<source><![CDATA[J Cardiovasc Med]]></source>
<year>2008</year>
<volume>9</volume>
<page-range>769-77</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[Vilcarromero Arbulú]]></surname>
<given-names><![CDATA[GA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Rabdomiosarcoma cardíaco]]></article-title>
<source><![CDATA[Rev Argent Cardiol]]></source>
<year>2013</year>
<volume>81</volume>
<numero>2</numero>
<issue>2</issue>
</nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Butany]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Nair]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Naseemuddin]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Nair]]></surname>
<given-names><![CDATA[GM]]></given-names>
</name>
<name>
<surname><![CDATA[Catton]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Yau]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cardiac tumours:diagnosis and management]]></article-title>
<source><![CDATA[Lancet Oncol]]></source>
<year>2005</year>
<volume>6</volume>
<page-range>219-28</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[Lima]]></surname>
<given-names><![CDATA[PP]]></given-names>
</name>
<name>
<surname><![CDATA[López-Almodóvar]]></surname>
<given-names><![CDATA[LF]]></given-names>
</name>
<name>
<surname><![CDATA[Jiménez]]></surname>
<given-names><![CDATA[JI]]></given-names>
</name>
<name>
<surname><![CDATA[Orradre]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Cañas]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sarcoma cardiaco primario que comienza como dolor abdominal e isquemia intestinal:a propósito de un caso y revisión de la literatura]]></article-title>
<source><![CDATA[Cir Cardiovasc]]></source>
<year>2013</year>
<volume>20</volume>
<page-range>156-8</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Neragi-Miandoab]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Vlahakes]]></surname>
<given-names><![CDATA[GJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Malignant tumours of the heart:a review of tumour type, diagnosis and therapy]]></article-title>
<source><![CDATA[Clin Oncol]]></source>
<year>2007</year>
<volume>19</volume>
<page-range>748-56</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Burke]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Primary malignant cardiac tumors]]></article-title>
<source><![CDATA[Semin Diagn Pathol]]></source>
<year>2008</year>
<volume>25</volume>
<page-range>39-46</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chaves]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Alvarado]]></surname>
<given-names><![CDATA[Arce EM]]></given-names>
</name>
<name>
<surname><![CDATA[Dam]]></surname>
<given-names><![CDATA[Arce C]]></given-names>
</name>
<name>
<surname><![CDATA[Castillo]]></surname>
<given-names><![CDATA[Aldeano O]]></given-names>
</name>
<name>
<surname><![CDATA[Induni]]></surname>
<given-names><![CDATA[López E]]></given-names>
</name>
<name>
<surname><![CDATA[Méndez]]></surname>
<given-names><![CDATA[Jiménez E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sarcoma primario del pericardio, reporte de caso]]></article-title>
<source><![CDATA[Rev Clin Esc Med UCR-HSJD]]></source>
<year>2018</year>
<volume>8</volume>
<numero>1</numero>
<issue>1</issue>
</nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Perchinsky]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
<name>
<surname><![CDATA[Lichtenstein]]></surname>
<given-names><![CDATA[SV]]></given-names>
</name>
<name>
<surname><![CDATA[Tyers]]></surname>
<given-names><![CDATA[GF]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Primary cardiac tumors:forty years'experience with 71 patients]]></article-title>
<source><![CDATA[Cancer]]></source>
<year>1997</year>
<volume>79</volume>
<page-range>1809-15</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Hsieh]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Salehi]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Recurrent cardiac intimal (spindle cell) sarcoma of the left atrium]]></article-title>
<source><![CDATA[J Cardiothorac Vasc Anesth]]></source>
<year>2013</year>
<volume>27</volume>
<page-range>103-7</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cho]]></surname>
<given-names><![CDATA[GJ]]></given-names>
</name>
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[HJ]]></given-names>
</name>
<name>
<surname><![CDATA[Kang]]></surname>
<given-names><![CDATA[JS]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Primary cardiac sarcoma in pregnancy:a case report]]></article-title>
<source><![CDATA[J Korean Med Sci]]></source>
<year>2006</year>
<volume>21</volume>
<page-range>940</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Abad]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Tumores cardíacos (I). Generalidades. Tumores primitivos benignos]]></article-title>
<source><![CDATA[Rev Esp Cardiol]]></source>
<year>1998</year>
<volume>50</volume>
<page-range>10-20</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rottier]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Vega]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Tumor primario del corazón más común:mixoma cardíaco]]></article-title>
<source><![CDATA[Revista Médica de Costa Rica y Centroamérica]]></source>
<year>2012</year>
<volume>69</volume>
<page-range>481-7</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Modi]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Lipnevicius]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Moorjani]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Haw]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Prolonged survival with left atrial spindle cell sarcoma]]></article-title>
<source><![CDATA[Interact Cardiovasc Thorac Surg]]></source>
<year>2009</year>
<volume>8</volume>
<page-range>703-4</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[EG]]></given-names>
</name>
<name>
<surname><![CDATA[Dolores]]></surname>
<given-names><![CDATA[VB]]></given-names>
</name>
<name>
<surname><![CDATA[Zaunbos]]></surname>
<given-names><![CDATA[MV]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sarcoma cardiaco primario:reporte de un caso y revisión de literatura actual]]></article-title>
<source><![CDATA[Reva Mex Cardiol]]></source>
<year>2010</year>
<volume>21</volume>
<page-range>6</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shanmugam]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Primary cardiac sarcoma]]></article-title>
<source><![CDATA[Eur J Cardiothorac Surg]]></source>
<year>2006</year>
<volume>29</volume>
<page-range>925-32</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Blackmon]]></surname>
<given-names><![CDATA[SH]]></given-names>
</name>
<name>
<surname><![CDATA[Reardon]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Surgical treatment of primary cardiac sarcomas]]></article-title>
<source><![CDATA[Tex Heart Inst J]]></source>
<year>2009</year>
<volume>36</volume>
<page-range>451-2</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Donsbeck]]></surname>
<given-names><![CDATA[AV]]></given-names>
</name>
<name>
<surname><![CDATA[Ranchere]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Coindre]]></surname>
<given-names><![CDATA[JM]]></given-names>
</name>
<name>
<surname><![CDATA[Le Gall]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Cordier]]></surname>
<given-names><![CDATA[JF]]></given-names>
</name>
<name>
<surname><![CDATA[Loire]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Primary cardiac sarcomas:an immunohistochemical and grading study with long-term follow-up of 24 cases]]></article-title>
<source><![CDATA[Histopathology]]></source>
<year>1999</year>
<volume>34</volume>
<page-range>295-304</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Blackmon]]></surname>
<given-names><![CDATA[SH]]></given-names>
</name>
<name>
<surname><![CDATA[Patel]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Reardon]]></surname>
<given-names><![CDATA[MJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Management of primary cardiac sarcomas]]></article-title>
<source><![CDATA[Expert Rev Cardiovasc Ther]]></source>
<year>2008</year>
<volume>6</volume>
<page-range>1217-22</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
