<?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>S1870-72032016000200101</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Arteria cerebral media accesoria: caso clínico radiológico]]></article-title>
<article-title xml:lang="en"><![CDATA[Accessory middle cerebral artery: radiological clinical case]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Paniagua Ortiz]]></surname>
<given-names><![CDATA[Mónica Jimena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carrillo Mezo]]></surname>
<given-names><![CDATA[Roger Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez Cortázar]]></surname>
<given-names><![CDATA[Julián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gómez Pérez]]></surname>
<given-names><![CDATA[María de Guadalupe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Ángeles Pedregal  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Ángeles Pedregal  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Ángeles Pedregal  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Hospital Ángeles Pedregal  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2016</year>
</pub-date>
<volume>14</volume>
<numero>2</numero>
<fpage>101</fpage>
<lpage>103</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-72032016000200101&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-72032016000200101&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-72032016000200101&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: La arteria cerebral media (ACM) es la mayor de las dos ramas terminales de la arteria carótida interna (ACI). Existen diferentes variantes anatómicas de la ACM, siendo las más frecuentes la duplicación de la ACM, la ACM accesoria y la fenestración de la ACM. Según la clasificación de Teal y cols. cuando los dos vasos se originan de la porción más distal de la arteria carótida interna se le llama duplicación de la ACM. El término ACM accesoria se utiliza cuando el vaso anómalo se origina directamente de la arteria cerebral anterior. Los aneurismas cerebrales se encuentran con mayor frecuencia en casos con variantes anatómicas como es la arteria cerebral media accesoria. Un correcto reconocimiento de estas variantes anatómicas por medio de la angiorresonancia magnética es de vital importancia para su adecuada valoración y seguimiento.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The middle cerebral artery (MCA) is the larger of the two terminal branches of the internal carotid artery (ICA). There are different anatomical variations of the MCA, the most frequent are duplicated MCA, an accessory MCA, and fenestrated MCA. According to the classification of Teal et al. when the two vessels arise from the most distal portion of the internal carotid artery is called duplicated MCA. The term accessory MCA is used when the anomalous vessel arises directly from the anterior cerebral artery. Cerebral aneurysms are found more frequently in cases with anatomical variants such as accessory middle cerebral artery. Proper recognition of these anatomic variants by magnetic resonance angiography is vital for proper assessment and monitoring.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Variantes anatómicas de la arteria cerebral media]]></kwd>
<kwd lng="es"><![CDATA[arteria cerebral media accesoria]]></kwd>
<kwd lng="es"><![CDATA[duplicación de la arteria cerebral media]]></kwd>
<kwd lng="en"><![CDATA[Anatomical variations of the middle cerebral artery]]></kwd>
<kwd lng="en"><![CDATA[accessory middle cerebral artery]]></kwd>
<kwd lng="en"><![CDATA[duplicated middle cerebral artery]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arslan]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Öztürk]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Incidental bilateral accessory middle cerebral arteries on MR imaging and MR angiography]]></article-title>
<source><![CDATA[Diagn Interv Radiol]]></source>
<year>2007</year>
<volume>13</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>10-2</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Komiyama]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Nakajima]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Nishikawa]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Yasui]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Middle cerebral artery variations duplicated and accessory arteries]]></article-title>
<source><![CDATA[AJNR Am J Neuroradiol]]></source>
<year>1998</year>
<volume>19</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>45-9</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chang]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Middle cerebral artery duplication classification and clinical implications]]></article-title>
<source><![CDATA[J Korean Neurosurg Soc]]></source>
<year>2011</year>
<volume>49</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>102-6</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reyes-Soto]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez-Cruz]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Delgado-Reyes]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Asociación de tres variantes anatómicas de circulación cerebral anterior]]></article-title>
<source><![CDATA[Cirugía y Cirujanos]]></source>
<year>2012</year>
<volume>80</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>333-8</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
