<?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>1025-0255</journal-id>
<journal-title><![CDATA[Revista Archivo Médico de Camagüey]]></journal-title>
<abbrev-journal-title><![CDATA[AMC]]></abbrev-journal-title>
<issn>1025-0255</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Ciencias Médicas de Camagüey]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1025-02552021000600014</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Encondroma: a propósito de un caso]]></article-title>
<article-title xml:lang="en"><![CDATA[Enchondroma: a case report]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alvarez-López]]></surname>
<given-names><![CDATA[Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fuentes-Véjar]]></surname>
<given-names><![CDATA[Rodrigo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Soto-Carrasco]]></surname>
<given-names><![CDATA[Sergio Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Creagh-García]]></surname>
<given-names><![CDATA[Johenis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Ciencias Médicas de Camagüey Hospital Universitario Manuel Ascunce Domenech Departamento de Ortopedia y Traumatología]]></institution>
<addr-line><![CDATA[Camagüey ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Católica de la Santísima Concepción. Licenciado en Medicina Facultad de Medicina]]></institution>
<addr-line><![CDATA[Concepción ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Ciencias Médicas de Camagüey Hospital Universitario Manuel Ascunce Domenech Departamento de Anatomía Patológica]]></institution>
<addr-line><![CDATA[Camagüey ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>25</volume>
<numero>6</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1025-02552021000600014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1025-02552021000600014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1025-02552021000600014&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Fundamento: los tumores óseos son lesiones frecuentes, cada tipo histológico tiene patrones típicos que los identifican. Sin embargo, en ocasiones se pueden presentar de forma atípica.  Objetivo: conocer el caso de una paciente con encondroma en la región proximal de la tibia derecha.  Presentación del caso: mujer de 74 años de edad, blanca con antecedentes de hipertensión arterial y asma bronquial, la cual acude a la consulta de Ortopedia y Traumatología por dolor a nivel de la rodilla derecha que aumenta con la actividad física y se acompaña de limitación funcional y crepitación articular. La tomografía axial computarizada mostró imagen osteoblástica a nivel de la meseta tibial derecha sin ruptura de la cortical. Además se evidenció múltiples quistes subcondrales de aspecto degenerativo, presencia de osteofitos tibiales, femorales ipsi y contralateral, espacio femoro-rotuliano muy disminuido asociado a esclerosis del cóndilo femoral. Con los elementos descritos se decidió llevar la paciente al quirófano, para tratamiento de tipo quirúrgico. Se realizó exéresis de la tumoración, la que fue enviada al departamento de anatomía patológica para estudio histológico que confirmó el diagnóstico. La zona de hueso extraída se llenó con cemento quirúrgico.  Conclusiones: el encondroma es un tumor benigno de origen cartilaginoso, su presencia por encima de los 40 años de edad es ocasional y constituye el principal diagnóstico diferencial del condrosarcoma de bajo grado histológico. Debido a lo infrecuente de esta afección fuera de su rango de edades, es necesaria la biopsia para confirmar el diagnóstico.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Background: bone tumors are common lesions, there are specific features related to each histological type, but unusual and atypical presentations do occur.  Objetive: to show the case of a patient with an enchondroma in the proximal right tibial plateau.  Case report: a 74 year old white woman, who had had previous personal history of hypertension and asthma is taken to the Orthopaedic and Traumatology outpatient department complaining of right knee pain which gets worse with physical activity associated to limited range of motion and articular crepitus. CT scan showed an osteoblastic lesion in the proximal upper right tibial plateau without cortical breaking. On the other hand, multiple subchondral degenerative cysts were found in the knee joint as well as osteophytes, sclerosis and joint space narrowing. Taken into account the entire previous patient' features, surgery was performed and consist of tumor resection with bone cement filled. The specimen was send to the pathology department showing enchondroma.  Conclusions: enchondroma is a benign cartilaginous bone tumor unfrequently found over 40 years of age, the main differential diagnosis is low grade chondrosarcoma. Because of the infrequent presentation of this case in regards to age, surgery was warranted to confirm diagnosis.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[CONDROMA/diagnóstico]]></kwd>
<kwd lng="es"><![CDATA[TOMOGRAFÍA COMPUTARIZADA ESPIRAL/métodos]]></kwd>
<kwd lng="es"><![CDATA[CONDROMA/cirugía]]></kwd>
<kwd lng="es"><![CDATA[NEOPLASIAS ÓSEAS]]></kwd>
<kwd lng="es"><![CDATA[INFORMES DE CASOS]]></kwd>
<kwd lng="en"><![CDATA[CHONDROMA/diagnosis]]></kwd>
<kwd lng="en"><![CDATA[TOMOGRAPHY, SPIRAL COMPUTED/methods]]></kwd>
<kwd lng="en"><![CDATA[CHONDROMA/surgery]]></kwd>
<kwd lng="en"><![CDATA[BONE NEOPLASMS]]></kwd>
<kwd lng="en"><![CDATA[CASE REPORTS]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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