<?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>1870-7203</journal-id>
<journal-title><![CDATA[Acta médica Grupo Ángeles]]></journal-title>
<abbrev-journal-title><![CDATA[Acta méd. Grupo Ángeles]]></abbrev-journal-title>
<issn>1870-7203</issn>
<publisher>
<publisher-name><![CDATA[Grupo Ángeles, Servicios de Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-72032025000400404</article-id>
<article-id pub-id-type="doi">10.35366/120518</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Síndrome de Grenet ocasionado por malformación venosas de flujo lento (cavernoma) en protuberancia]]></article-title>
<article-title xml:lang="en"><![CDATA[Grenet syndrome is caused by slow flow venous malformation (cavernoma) in the pons]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Domínguez Carrillo]]></surname>
<given-names><![CDATA[Luis Gerardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arellano Aguilar]]></surname>
<given-names><![CDATA[José Gregorio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hasslacher Arellano]]></surname>
<given-names><![CDATA[Juan Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Guanajuato Facultad de Medicina de León ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Angeles León División de Medicina ]]></institution>
<addr-line><![CDATA[León Guanajuato]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Angeles León División de Cirugía ]]></institution>
<addr-line><![CDATA[León Guanajuato]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2025</year>
</pub-date>
<volume>23</volume>
<numero>4</numero>
<fpage>404</fpage>
<lpage>405</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-72032025000400404&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-72032025000400404&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-72032025000400404&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Cerebral cavernous venous malformations (CVMs) are &#8220;slow-flow venous malformations&#8221;. It is the third most common cerebral vascular malformation, supratentorial in ~80% of cases. Brainstem CVMs are rare (8-22%) of all intracranial cavernomas; 40% are incidental findings. If they occur, their symptoms are between 30 and 60 years of age; they are usually single lesions. The majority remain asymptomatic. Presentation due to bleeding can cause headaches, seizures, and focal neurological deficits. The risk of bleeding is &lt; 0.1 to 1% per patient-year and 5% in the brainstem. Symptomatic lesions should, when possible, be resected, and complete resection is curative.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[cavermous venous malformation]]></kwd>
<kwd lng="en"><![CDATA[slow flow venous malformation]]></kwd>
<kwd lng="en"><![CDATA[cerebral vascular malformation]]></kwd>
<kwd lng="en"><![CDATA[intracraneal cavernoma]]></kwd>
</kwd-group>
</article-meta>
</front>
</article>
