<?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>1029-3019</journal-id>
<journal-title><![CDATA[MEDISAN]]></journal-title>
<abbrev-journal-title><![CDATA[MEDISAN]]></abbrev-journal-title>
<issn>1029-3019</issn>
<publisher>
<publisher-name><![CDATA[Centro Provincial de Información de Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1029-30192023000100002</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Utilización del sistema Bethesda para el diagnóstico citológico de nódulos tiroideos]]></article-title>
<article-title xml:lang="en"><![CDATA[Use of the Bethesda system for the cytologic diagnosis of thyroid nodules]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Escalona Veloz]]></surname>
<given-names><![CDATA[Rafael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital General Docente Dr. Juan Bruno Zayas Alfonso  ]]></institution>
<addr-line><![CDATA[Santiago de Cuba ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2023</year>
</pub-date>
<volume>27</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1029-30192023000100002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1029-30192023000100002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1029-30192023000100002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  El nódulo tiroideo es un hallazgo común en la actualidad y, por sus características ecográficas, constituye una lesión distinta al parénquima glandular, con una prevalencia alta en la población general.  Objetivo:  Describir el uso del sistema Bethesda como método de diagnóstico de nódulos tiroideos y el grado de malignidad.  Métodos:  Se efectuó un estudio descriptivo y retrospectivo de 1771 pacientes con diagnóstico de nódulo tiroideo, a quienes se les realizó citología por aspiración con aguja fina en el Departamento de Anatomía Patológica del Hospital General Docente Dr. Juan Bruno Zayas Alfonso de Santiago de Cuba durante el cuatrienio 2016-2019.  Resultados:  En la serie predominó el grupo etario de 41-50 años y la edad media fue de 49,51±13,14 años. Asimismo, sobresalió la categoría II del sistema Bethesda (73,8 %); en tanto, de los 204 diagnosticados correspondientes a la categoría III, 111 fueron intervenidos quirúrgicamente y 29 de estos presentaron neoplasias malignas (27,6 %). El grado de malignidad osciló entre 22,8 y 36,0 %.  Conclusiones:  La aplicación del sistema Bethesda fue muy útil para el diagnóstico citopatológico de nódulos tiroideos y el grado de malignidad se correspondió con cifras adecuadas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  The thyroid nodule is a common finding nowadays and, for its echographic characteristics, it constitutes a lesion different to the glandular parenchyma, with a high prevalence in the general population.  Objective:  To describe the use of the Bethesda system as diagnostic method of thyroid nodules and the degree of malignancy.  Methods:  A descriptive and retrospective study of 1 771 patients with diagnosis of thyroid nodule was carried out, who underwent fine needle aspiration cytology, in the Pathology Department of Dr. Juan Bruno Zayas Alfonso Teaching General Hospital in Santiago de Cuba during 2016-2019.  Results:  In the series there was a prevalence of the 41-50 age group and the mean age was of 49,51±13,14 years. Also, the category II of the Bethesda system was notable (73.8 %); as long as, of the 204 diagnosed corresponding to the category III, 111 were surgically intervened and 29 of them presented mlignancy (27.6 %). The degree of malignancy oscillated between 22.8 and 36.0 %.  Conclusions:  The application of the Bethesda system was very useful for the cytopathologic diagnosis of thyroid nodules and the degree of malignancy corresponded with appropriate figures.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[nódulo tiroideo]]></kwd>
<kwd lng="es"><![CDATA[biopsia con aguja fina]]></kwd>
<kwd lng="es"><![CDATA[sistema Bethesda]]></kwd>
<kwd lng="en"><![CDATA[thyroid nodule]]></kwd>
<kwd lng="en"><![CDATA[fine needle biopsy]]></kwd>
<kwd lng="en"><![CDATA[Bethesda system]]></kwd>
</kwd-group>
</article-meta>
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