<?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>2007-4085</journal-id>
<journal-title><![CDATA[Revista mexicana de urología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. urol.]]></abbrev-journal-title>
<issn>2007-4085</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Urología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-40852021000300008</article-id>
<article-id pub-id-type="doi">10.48193/rmu.v81i3.769</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Off- Clamp nephron sparing minimally invasive surgery for multifocal tumors: experience of a case]]></article-title>
<article-title xml:lang="es"><![CDATA[Cirugía preservadora de nefronas para tumores multifocales sin isquemia: experiencia de un caso]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Verdugo]]></surname>
<given-names><![CDATA[José Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arrambide-Herrera]]></surname>
<given-names><![CDATA[José Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aviña-Magaña]]></surname>
<given-names><![CDATA[Jaime]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montelongo-Rodríguez]]></surname>
<given-names><![CDATA[Fred Alain]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Monterrey Instituto de Urología Robótica y Laparoscópica ]]></institution>
<addr-line><![CDATA[ Nuevo León]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Nuevo León Hospital Universitario &#8220;Dr. José Eleuterio González" ]]></institution>
<addr-line><![CDATA[ Nuevo León]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<volume>81</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-40852021000300008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-40852021000300008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-40852021000300008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Description of the clinical case:  61-year-old female who presented to the outpatient clinic, asymptomatic and with an imaging study suggestive of multiple ipsilateral right kidney tumors as well as adrenal incidentaloma. The patient was treated with a laparoscopic partial nephrectomy of both renal tumors and adrenalectomy. Renal cell cancer nuclear grade 2 has been reported in the tumor of the upper pole, angiomyolipoma in the middle region of the kidney and cortical adenoma.  Relevance:  Until now, the incidence of synchronous renal tumors at the time of diagnosis is unknown, likewise with new technologies and with greater surgeon&#8217;s experience, nephron-preserving surgery has been proposed in multifocal renal tumors for the treatment of this type of tumors.  Clinical implications:  There is a controversy and few reports where this type of tumors are treated with nephron-sparing surgery in multifocal tumors. So far in series of clinical cases this technique has been reported as safe and feasible in selected cases.  Conclusions:  In expert hands and in particular cases, this technique seems to be a reproducible and safe procedure for the patient, thus ensuring that part of the renal unit is preserved, and good oncological results.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Descripción del caso clínico:  Femenina de 61 años que se presenta a la consulta externa, asintomática y con estudio de imagen sugestivo de múltiples tumoraciones renales derechas ipsilaterales así como incidentaloma suprarenal. Se comienza abordaje de la paciente y se realiza una nefrectomía parcial laparoscópica de ambas tumoraciones renales más adrenalectomía. Se reporta cáncer de células renales grado nuclear 2 en la tumoración del polo superior, angiomiolipoma en la región media del riñón y adenoma cortical.  Relevancia:  Hasta el momento se desconoce cual es la incidencia de tumoraciones renales sincrónicas al momento del diagnóstico, así mismo con nuevas tecnologías y con la mayor experiencia del cirujano se ha propuesto la cirugía presevadora de nefronas en tumores renales multifocales para el tratamiento de este tipo de tumoraciones.  Implicaciones clínicas:  Existe controversia y pocos reportes en donde se trata este tipo de tumoraciones con cirugía preservadora de nefronas en tumoraciones multifocales. Hasta el momento en revisiones y series de casos clínicos esta técnica se ha reportado como segura y factible en casos seleccionados.  Conclusiones:  En manos expertas y en casos particulares, esta técnica pareciera ser un procedimiento reproducible y seguro para el paciente asegurando asi preservar la funcion de la unidad renal y buenos resultados oncológicos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Renal cell cancer]]></kwd>
<kwd lng="en"><![CDATA[nephron-preserving surgery]]></kwd>
<kwd lng="en"><![CDATA[laparoscopy]]></kwd>
<kwd lng="en"><![CDATA[off-clamp]]></kwd>
<kwd lng="es"><![CDATA[Cáncer de células renales]]></kwd>
<kwd lng="es"><![CDATA[cirugía preservadora de nefronas]]></kwd>
<kwd lng="es"><![CDATA[laparoscopia]]></kwd>
<kwd lng="es"><![CDATA[sin isquemia]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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