<?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>2954-4122</journal-id>
<journal-title><![CDATA[Archivos de neurociencias (México)]]></journal-title>
<abbrev-journal-title><![CDATA[Arch. Neurocien. (Mex.)]]></abbrev-journal-title>
<issn>2954-4122</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suárez"]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2954-41222025000200075</article-id>
<article-id pub-id-type="doi">10.24875/anc.m24000010</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Meningioma del ángulo pontocerebeloso con extensión al conducto auditivo externo y al oído medio]]></article-title>
<article-title xml:lang="en"><![CDATA[Pontocerebellar angle meningioma with external auditory canal and middle ear extension]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Díaz]]></surname>
<given-names><![CDATA[Oriana C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramos-Sánchez]]></surname>
<given-names><![CDATA[Rebeca]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Calderón-Garcidueñas]]></surname>
<given-names><![CDATA[Ana L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García Quintero]]></surname>
<given-names><![CDATA[Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Ministerio de Salud Hospital General 450 Departamento de Anatomía Patológica]]></institution>
<addr-line><![CDATA[Durango ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez Departamento de Neuro-Radiología ]]></institution>
<addr-line><![CDATA[Cuidad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez Departamento de Neuropatología ]]></institution>
<addr-line><![CDATA[Cuidad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suárez Departamento de Neurología ]]></institution>
<addr-line><![CDATA[Cuidad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2025</year>
</pub-date>
<volume>30</volume>
<numero>2</numero>
<fpage>75</fpage>
<lpage>78</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2954-41222025000200075&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2954-41222025000200075&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2954-41222025000200075&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los meningiomas suelen ser tumores de crecimiento lento que surgen de las células aracnoideas. La extensión de un meningioma del ángulo pontocerebeloso al conducto auditivo externo es poco común. Una mujer de 64 años presentó pérdida auditiva unilateral y progresiva, y acúfenos. Se observó un tumor que protruía hacia el conducto auditivo externo. La resonancia magnética mostró un tumor del ángulo pontocerebeloso con extensión al oído medio y al conducto auditivo externo. Se realizó resección subtotal (85%). Finalmente, al alta hospitalaria solo presentaba una parálisis del sexto par craneal derecho. Los meningiomas del ángulo pontocerebeloso pueden presentarse con pérdida auditiva unilateral y progresiva, y pueden extenderse al conducto auditivo externo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Meningiomas are usually slow-growth tumors that arise from arachnoid cells. Extension of a cerebellopontine angle (CPA) meningioma to the external auditory canal is uncommon. A 64-year-old woman presented with unilateral and progressive hearing loss and tinnitus. A tumor was observed protruding into the external auditory canal. Magnetic resonance imaging showed a CPA tumor with extension to the middle ear, and external auditory canal. A subtotal resection (85%) was performed. Finally, on discharge from the hospital, she presented only a right sixth cranial nerve palsy. Meningiomas of the pontocerebellar angle can present with unilateral and progressive hearing loss and may extend to the external auditory canal.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Meningioma]]></kwd>
<kwd lng="es"><![CDATA[Canal auditivo externo]]></kwd>
<kwd lng="es"><![CDATA[Ángulo pontocerebeloso]]></kwd>
<kwd lng="en"><![CDATA[Meningioma]]></kwd>
<kwd lng="en"><![CDATA[External auditory canal]]></kwd>
<kwd lng="en"><![CDATA[Cerebellopontine angle]]></kwd>
</kwd-group>
</article-meta>
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