<?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>1561-3194</journal-id>
<journal-title><![CDATA[Revista de Ciencias Médicas de Pinar del Río]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Ciencias Médicas]]></abbrev-journal-title>
<issn>1561-3194</issn>
<publisher>
<publisher-name><![CDATA[Editorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1561-31942021000500023</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Metástasis duodenal por hipernefroma, reporte de un caso]]></article-title>
<article-title xml:lang="en"><![CDATA[Duodenal metastasis from hypernephroma: a case report]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Caveda Carrasco]]></surname>
<given-names><![CDATA[Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramos-Cordero]]></surname>
<given-names><![CDATA[Angel Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Ciencias Médicas de Pinar del Río Hospital Pediátrico Provincial Docente &#8220;Pepe Portilla&#8221; ]]></institution>
<addr-line><![CDATA[Pinar del Río ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Ciencias Médicas de Pinar del Río Policlínico Fermín Valdés Domínguez de Viñales ]]></institution>
<addr-line><![CDATA[Pinar del Río ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2021</year>
</pub-date>
<volume>25</volume>
<numero>5</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1561-31942021000500023&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1561-31942021000500023&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1561-31942021000500023&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: el hipernefroma representa del 2 % al 3 % de todas las neoplasias malignas del adulto. Sus patrones de metástasis no han sido definidos con precisión. La metástasis duodenal es considerada rara cuando se presenta.  Presentación del caso: paciente masculino, de 48 años de edad, con antecedentes de nefrectomía derecha por presentar hipernefroma que a los siete meses de la intervención se diseminó a pulmón y fosa renal. Al año de la nefrectomía es valorado por presentar anemia crónica, sangre oculta en heces fecales positiva y sintomatología gastrointestinal. Se realizó colon por enema opaco que reveló infiltración de la pared y durante la realización de gastroscopia se realizó toma de muestra de lesión tumoral en duodeno. El análisis anatomopatológico de la biopsia duodenal mostró una lesión tumoral de células grandes anaplásicas con citoplasma vacuolado, PAS positivas y PAS Diastasa negativas, compatible con metástasis de carcinoma de células renales.  Conclusiones: la aparición tardía de metástasis y la regresión espontánea del hipernefroma exigen un seguimiento integral y prolongado del personal médico a su cargo, en quienes la sospecha de diseminación siempre debe preponderar durante el abordaje clínico, aun cuando la clínica no sugiera los sitios más comunes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  hypernephroma represents 2 % to 3 % of all adult malignant neoplasms. Its metastatic patterns have not been precisely defined. Duodenal metastasis is considered rare when it occurs.  Case Report:  a 48-year-old-male patient, having a history of right nephrectomy due to hypernephroma, at 7 months after the surgery a spread to the lung and renal fossa was found. One year after nephrectomy he was evaluated for chronic anemia, positive fecal occult blood and gastrointestinal symptoms. An opaque colon enema was performed which revealed infiltration of the wall and during gastroscopy a sample of tumor lesion in the duodenum was taken. The pathological analysis of the duodenal biopsy showed an anaplastic large cell tumor lesion with vacuolated cytoplasm, PAS positive and PAS Diastase negative, compatible with metastasis of renal cell carcinoma.  Conclusions:  the late appearance of metastases and spontaneous regression of hypernephroma require a comprehensive and prolonged follow-up by the medical staff in charge, in those where the suspicion of dissemination should always prevail during the clinical approach, even when the clinical picture does not suggest the most common sites.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[CARCINOMA DE CÉLULAS RENALES]]></kwd>
<kwd lng="es"><![CDATA[NEOPLASIAS RENALES]]></kwd>
<kwd lng="es"><![CDATA[EPIDEMIOLOGÍA]]></kwd>
<kwd lng="es"><![CDATA[METÁSTASIS DE LA NEOPLASIA]]></kwd>
<kwd lng="es"><![CDATA[DUODENO]]></kwd>
<kwd lng="en"><![CDATA[CARCINOMA, RENAL CELL]]></kwd>
<kwd lng="en"><![CDATA[KIDNEY NEOPLASMS]]></kwd>
<kwd lng="en"><![CDATA[EPIDEMIOLOGY]]></kwd>
<kwd lng="en"><![CDATA[NEOPLASM METASTASIS]]></kwd>
<kwd lng="en"><![CDATA[DUODENUM]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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