<?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>1130-0558</journal-id>
<journal-title><![CDATA[Revista Española de Cirugía Oral y Maxilofacial]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Esp Cirug Oral y Maxilofac]]></abbrev-journal-title>
<issn>1130-0558</issn>
<publisher>
<publisher-name><![CDATA[ Sociedad Española de Cirugía Oral y Maxilofacial y de Cabeza y Cuello]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1130-05582021000200076</article-id>
<article-id pub-id-type="doi">10.20986/recom.2021.1111/2019</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Mixoma mandibular en paciente de 3 años, una entidad específica. Tratamiento quirúrgico conservador. Caso clínico y revisión de la literatura]]></article-title>
<article-title xml:lang="en"><![CDATA[Mandibular mixoma in a 3-year-old patient, a specific entity. Conservative surgical treatment. Case report and review of literature]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tapia Contreras]]></surname>
<given-names><![CDATA[Pedro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mordoh Cucurella]]></surname>
<given-names><![CDATA[Sebastián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosenberg Dueñas]]></surname>
<given-names><![CDATA[Benjamín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lolas Marinovic]]></surname>
<given-names><![CDATA[Vesna]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Clínica Red Salud Vitacura Departamento de Cirugía Oral y Máxilo-Facial ]]></institution>
<addr-line><![CDATA[Santiago ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Regional de Rancagua Departamento de Cirugía Oral y Máxilo-Facial ]]></institution>
<addr-line><![CDATA[Rancagua ]]></addr-line>
<country>Chile</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>43</volume>
<numero>2</numero>
<fpage>76</fpage>
<lpage>80</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S1130-05582021000200076&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S1130-05582021000200076&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S1130-05582021000200076&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El mixoma odontogénico o mixofibroma (MO) está considerado dentro del grupo de los tumores benignos con mesénquima con o sin epitelio odontogénico. Representa alrededor del 3-9 % de todos los tumores odontogénicos, con una incidencia del 0,07/1.000.000 habitantes al año. La tercera década es la más prevalente, con mayor incidencia en mujeres que en hombres, teniendo predilección en la región posterior de la mandíbula. Este tumor tiene crecimiento lento y es localmente agresivo, sin presentar sintomatología en la mayoría de los casos. El tratamiento quirúrgico estándar de acuerdo con la literatura es la resección con margen de seguridad. Sin embargo, existen reportes de tratamientos conservadores (enucleación y curetaje) en pacientes pediátricos de corta edad con baja tasa de recidiva. El propósito de este reporte de caso es presentar a un paciente de sexo masculino de 3 años de edad con un MO en la zona cuerpo de la mandíbula, tratado con exéresis completa de la lesión más curetaje perilesional. Se realizó un seguimiento clínico y radiográfico a los 2, 4 y 10 meses postcirugía; luego, anualmente hasta los 5 años postcirugía sin signos de recidiva. Según publicaciones respecto al MO en niños, se señala que este debería considerarse una patología única debido a sus características clínicas diferentes a las del adulto y el reporte de baja tasa de recidiva con tratamientos quirúrgicos conservadores. Considerando que la literatura respecto al MO pediátrico no es abundante. El hecho de que se aporte antecedentes respecto a una localización poco frecuente y un tratamiento conservador sin recidiva del MO en un paciente de 3 años y con 5 años de seguimiento permite entregar una esperanza de cirugías no agresivas en futuros pacientes pediátricos menores de 4 años con MO.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The odontogenic myxoma or myxofibroma (OM), is considered within the group of benign tumors with mesenchyme with or without odontogenic epithelium. It represents about 3-9 % of all odontogenic tumors, with an incidence of 0.07/1,000,000 inhabitants per year. The third decade is the most prevalent, with greater incidence in women than men, having a predilection in the posterior region of the jaw. This tumor has slow growth and is locally aggressive, without presenting symptoms in most cases. The standard surgical treatment according to the literature is resection with safety margin. However, there are reports of conservative treatments (enucleation and curettage) in young pediatric patients with low recurrence rates. The purpose of this case report is to present a 3-year-old male patient with an MO in the body area of the jaw, treated with complete hysteresis of the lesion plus perilesional curettage. Clinical and radiographic follow-up was performed at 2, 4 and 10 months post surgery, then annually until 5 years post surgery without signs of recurrence. According to publications regarding the MO in children, it is pointed out that this should be considered a unique pathology due to its clinical characteristics different from those of the adult and the report of low recurrence rate with conservative surgical treatments. Whereas the literature regarding pediatric OM is not abundant. The fact that background information is provided regarding a rare location and a conservative treatment without relapse of the MO in a 3-year-old patient and with 5 years of follow-up, allows to deliver a hope of non-aggressive surgeries in future pediatric patients under 4 years old with OM.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Mixoma]]></kwd>
<kwd lng="es"><![CDATA[mixoma mandibular]]></kwd>
<kwd lng="es"><![CDATA[paciente pediátrico]]></kwd>
<kwd lng="es"><![CDATA[tratamiento quirúrgico conservador]]></kwd>
<kwd lng="en"><![CDATA[Myxoma]]></kwd>
<kwd lng="en"><![CDATA[jaw myxoma]]></kwd>
<kwd lng="en"><![CDATA[pediatric patient]]></kwd>
<kwd lng="en"><![CDATA[conservative surgical treatment]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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