<?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>2954-3835</journal-id>
<journal-title><![CDATA[Cardiovascular and metabolic science]]></journal-title>
<abbrev-journal-title><![CDATA[Cardiovasc. metab. sci]]></abbrev-journal-title>
<issn>2954-3835</issn>
<publisher>
<publisher-name><![CDATA[Asociación Nacional de Cardiólogos de México A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2954-38352022000300106</article-id>
<article-id pub-id-type="doi">10.35366/107623</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Right atrial heart myxoma, two different presentations of the same entity and histopathological findings]]></article-title>
<article-title xml:lang="es"><![CDATA[Mixoma cardiaco auricular derecho, dos presentaciones diferentes de una misma entidad y hallazgos histopatológicos]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Sotelo]]></surname>
<given-names><![CDATA[Víctor Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velázquez-Sotelo]]></surname>
<given-names><![CDATA[Claudia Elizabeth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vega-Hernández]]></surname>
<given-names><![CDATA[Raquel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mejía-Bañuelos]]></surname>
<given-names><![CDATA[Rosa María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Unidad Médica de Alta Especialidad Hospital de Cardiología No. 34 Cardiothoracic Surgery Department]]></institution>
<addr-line><![CDATA[Monterrey Nuevo León]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Unidad Médica de Alta Especialidad Hospital de Cardiología No. 34 Cardiology Department]]></institution>
<addr-line><![CDATA[Monterrey Nuevo León]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Unidad Médica de Alta Especialidad Hospital de Cardiología No. 34 Cardiothoracic Surgery Department]]></institution>
<addr-line><![CDATA[Monterrey Nuevo León]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Instituto Mexicano del Seguro Social Unidad Médica de Alta Especialidad Hospital de Cardiología No. 34 Department of Pathology]]></institution>
<addr-line><![CDATA[Monterrey Nuevo León]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<volume>33</volume>
<numero>3</numero>
<fpage>106</fpage>
<lpage>112</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2954-38352022000300106&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2954-38352022000300106&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2954-38352022000300106&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction:  Cardiac myxomas are the most common primary neoplasms of the heart. The most common location is the left atrium (75%), followed by the right atrium (15-18%) and left ventricle. They may present with the triad of obstructive, embolic and constitutional symptoms. Case 1: a 59-year-old man under follow up for non-Hodgkin cutaneous T cell lymphoma, suffering from progressive dyspnea, was found to have a mass located on the right atrium. Resection of the tumor was performed, and replacement of the mitral valve due to severe mitral regurgitation. Histopathology confirmed the diagnosis of myxoma. Case 2: a 61-year-old woman presented with thrombosis in the basilic, cephalic and right jugular veins. An echocardiogram showed an 80 × 40 mm cardiac mass in the right atrium. On the histopathological report, a cardiac myxoma with the greatest diameter of 7.5 cm was reported. The patient was discharged nine days after surgery.  Conclusion:  There could be an unusual presentation of atrial myxoma occurring simultaneously with a neoplasm of different lineage. Atrial myxoma should be suspected even in unusual locations and regardless of concomitant neoplastic disease. Embolic phenomena, as the first presentation, may be misleading, although some parameters and scores might be useful predictors.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Introducción:  Los mixomas cardiacos son las neoplasias primarias más frecuentes del corazón. La ubicación más común es la aurícula izquierda (75%), seguido de la aurícula derecha (15-18%) y ventrículo izquierdo. Pueden presentarse con la tríada de síntomas obstructivos, embólicos y constitucionales. Caso 1: varón de 59 años en seguimiento por linfoma cutáneo no Hodgkin de linfocitos T, que padecía disnea progresiva y presentaba una masa localizada en la aurícula derecha. Se realizó resección del tumor y reemplazo de la válvula mitral debido a insuficiencia mitral severa. La histopatología confirmó el diagnóstico de mixoma. Caso 2: mujer de 61 años que consulta por trombosis en vena basílica, cefálica y yugular derecha. Un ecocardiograma mostró una masa cardiaca de 80 × 40 mm en la aurícula derecha. En el informe histopatológico se informó un mixoma cardiaco con el diámetro mayor de 7.5 cm. Fue dada de alta nueve días después de la cirugía.  Conclusión:  Podría haber una presentación inusual de mixoma auricular que ocurra simultáneamente con una neoplasia de diferente linaje. Debe sospecharse mixoma auricular, incluso en ubicaciones inusuales e independientemente de la enfermedad neoplásica concomitante. Los fenómenos embólicos, como la primera presentación, pueden inducir a error; aunque algunos parámetros y puntuaciones pueden ser predictores útiles.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[myxoma]]></kwd>
<kwd lng="en"><![CDATA[atrial mass]]></kwd>
<kwd lng="en"><![CDATA[cutaneous T cell lymphoma]]></kwd>
<kwd lng="en"><![CDATA[embolism and histopathological findings]]></kwd>
<kwd lng="es"><![CDATA[mixoma]]></kwd>
<kwd lng="es"><![CDATA[masa auricular]]></kwd>
<kwd lng="es"><![CDATA[linfoma cutáneo de células T]]></kwd>
<kwd lng="es"><![CDATA[embolia y hallazgos histopatológicos]]></kwd>
</kwd-group>
</article-meta>
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