<?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>1699-695X</journal-id>
<journal-title><![CDATA[Revista Clínica de Medicina de Familia]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Clin Med Fam]]></abbrev-journal-title>
<issn>1699-695X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Española de Medicina de Familia y Comunitaria]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1699-695X2020000100012</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Quiste óseo aneurismático]]></article-title>
<article-title xml:lang="en"><![CDATA[Aneurysmal bone cyst]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Torres Hidalgo]]></surname>
<given-names><![CDATA[Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sáez Moreno]]></surname>
<given-names><![CDATA[Miguel Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castaño Díaz]]></surname>
<given-names><![CDATA[Marta]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moya Meneses]]></surname>
<given-names><![CDATA[Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro de Salud Zona VIII  ]]></institution>
<addr-line><![CDATA[Albacete ]]></addr-line>
<country>España</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro de Salud Zona VIII  ]]></institution>
<addr-line><![CDATA[Albacete ]]></addr-line>
<country>España</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<volume>13</volume>
<numero>1</numero>
<fpage>93</fpage>
<lpage>96</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S1699-695X2020000100012&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S1699-695X2020000100012&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S1699-695X2020000100012&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El quiste óseo aneurismático es una lesión ósea reactiva que está formada por cavidades quísticas que contienen sangre. Generalmente ocasiona dolor de intensidad leve o moderada, pero el paciente puede presentar deformidad y fractura patológica, ya que en su evolución es común el crecimiento local agresivo y la destrucción cortical. Aparece con más frecuencia en las dos primeras décadas de la vida y representa aproximadamente el 1,4 % de todos los tumores óseos primarios. Presentamos el caso de un varón de 16 años diagnosticado de quiste óseo aneurismático que inicialmente consultó por dolor mecánico en el tobillo izquierdo. El paciente fue intervenido quirúrgicamente mediante resección y reconstrucción con injerto óseo. La evolución fue favorable, permaneciendo asintomático al cabo de unos meses de la intervención. El quiste óseo aneurismático se debe probablemente a un cambio fisiopatológico como consecuencia de un traumatismo o de un proceso vascular anómalo. El médico de familia debe sospecharlo cuando observe en la radiografía ósea una imagen lítica y multiloculada de carácter expansivo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Aneurysmal bone cyst is a reactive bone lesion formed by cystic cavities containing blood. It generally causes mild to moderate pain, but the patient can present deformity and pathological fracture, since aggressive local growth and cortical destruction are frequent during its development. It occurs most frequently in the first two decades of life, and accounts for approximately 1.4% of all primary bone tumors. We present the case of a 16-year-old man diagnosed with aneurysmal bone cyst who initially presented mechanical pain in left ankle. The patient underwent surgical resection and reconstruction with bone graft. The evolution was favorable and the patient remains asymptomatic several months after surgery. Aneurysmal bone cyst is probably due to a pathophysiological change caused by a trauma or by an anomalous vascular process. The family doctor should suspect this disease when the bone radiography shows a lytic, multilocular, expansive lesion.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Quistes Óseos Aneurismáticos]]></kwd>
<kwd lng="es"><![CDATA[Neoplasias Óseas]]></kwd>
<kwd lng="es"><![CDATA[Extremidad Inferior]]></kwd>
<kwd lng="en"><![CDATA[Bone Cysts, Aneurysmal]]></kwd>
<kwd lng="en"><![CDATA[Bone Neoplasms]]></kwd>
<kwd lng="en"><![CDATA[Lower Extremity]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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