<?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>2565-005X</journal-id>
<journal-title><![CDATA[Gaceta mexicana de oncología]]></journal-title>
<abbrev-journal-title><![CDATA[Gac. mex. oncol.]]></abbrev-journal-title>
<issn>2565-005X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Oncología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2565-005X2025000500097</article-id>
<article-id pub-id-type="doi">10.24875/j.gamo.25000055</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Hiperparatiroidismo primario debido a carcinoma de paratiroides: reporte de caso]]></article-title>
<article-title xml:lang="en"><![CDATA[Primary hyperparathyroidism due to parathyroid carcinoma: case report]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Méndez-Sánchez]]></surname>
<given-names><![CDATA[Jorge E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sotelo-Álvarez]]></surname>
<given-names><![CDATA[Arturo J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro Médico Nacional del Bajío, IMSS Hospital de Especialidades No. 1 Departamento de Cirugía Oncológica]]></institution>
<addr-line><![CDATA[Gto ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<volume>24</volume>
<fpage>97</fpage>
<lpage>100</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2565-005X2025000500097&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2565-005X2025000500097&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2565-005X2025000500097&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El carcinoma paratiroideo es una causa poco frecuente pero agresiva de hiperparatiroidismo primario y una de las neoplasias malignas más raras. La mayoría de los estudios muestran una prevalencia &lt; 1% de todos los casos. Describimos el caso de una paciente con hiperparatiroidismo primario debido a carcinoma de paratiroides, la cual fue llevada a una intervención quirúrgica con hallazgo patológico de cáncer de paratiroides, el cual representa un pronóstico variable con altas tasas de recurrencia y afectación metastásica, por lo que el tratamiento oportuno es eficaz en este tipo de neoplasia.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Parathyroid carcinoma is a rare but aggressive cause of primary hyperparathyroidism and one of the rarest malignancies. Most studies report a prevalence &lt; 1% of all cases. We describe the case of a patient with primary hyperparathyroidism due to parathyroid carcinoma who underwent surgery with a pathological finding of parathyroid cancer. This cancer has a variable prognosis with high rates of recurrence and metastatic disease. Therefore, timely management is effective in this type of neoplasia.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Carcinoma de paratiroides]]></kwd>
<kwd lng="es"><![CDATA[Hiperparatiroidismo]]></kwd>
<kwd lng="es"><![CDATA[Reporte de caso]]></kwd>
<kwd lng="es"><![CDATA[Resección]]></kwd>
<kwd lng="es"><![CDATA[Glándula paratiroides]]></kwd>
<kwd lng="en"><![CDATA[Parathyroid carcinoma]]></kwd>
<kwd lng="en"><![CDATA[Hyperparathyroidism]]></kwd>
<kwd lng="en"><![CDATA[Case report]]></kwd>
<kwd lng="en"><![CDATA[Resection]]></kwd>
<kwd lng="en"><![CDATA[Parathyroid gland]]></kwd>
</kwd-group>
</article-meta>
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