<?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>1727-897X</journal-id>
<journal-title><![CDATA[MediSur]]></journal-title>
<abbrev-journal-title><![CDATA[Medisur]]></abbrev-journal-title>
<issn>1727-897X</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Ciencias Médicas de Cienfuegos, Centro Provincial de Ciencias Médicas, Provincia de Cienfuegos.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1727-897X2023000400842</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Manifestaciones clínicas e histopatológicas de la eritroplasia bucal en pacientes fumadores de tabaco]]></article-title>
<article-title xml:lang="en"><![CDATA[Clinical and histopathological manifestations of oral erythroplasia in tobacco smokers]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Estrada Pereira]]></surname>
<given-names><![CDATA[Gladys Aída]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Agüero Despaigne]]></surname>
<given-names><![CDATA[Liliet Antonia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Provincial Clinicoquirúrgico Docente Saturnino Lora Torres.  ]]></institution>
<addr-line><![CDATA[Santiago de Cuba ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2023</year>
</pub-date>
<volume>21</volume>
<numero>4</numero>
<fpage>842</fpage>
<lpage>850</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1727-897X2023000400842&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1727-897X2023000400842&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1727-897X2023000400842&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Fundamento la eritroplasia es la lesión precancerosa más agresiva de la cavidad oral, con un gran potencial de transformación maligna. Al momento de practicar la biopsia y analizar la muestra, puede aparecer una displasia severa o un carcinoma invasivo.  Objetivo  describir las manifestaciones clínicas e histopatológicas de la eritroplasia bucal en pacientes fumadores activos de tabaco.  Métodos  se realizó un estudio descriptivo y transversal, con 12 fumadores diagnosticados clínica e histopatológicamente con eritroplasia bucal, atendidos en la consulta estomatológica del Policlínico de Especialidades del Hospital Saturnino Lora Torres, de Santiago de Cuba. Para la recolección del dato primario se confeccionó una encuesta con las variables: edad, sexo, diagnóstico clínico, tiempo en el hábito de fumar, diferentes formas de consumir tabaco, localización anatómica y estudio histopatológico de la enfermedad.  Resultados  prevaleció el sexo masculino, el grupo etario de 60 y más años, y los fumadores convencionales de 21 y más años. El infiltrado inflamatorio crónico intenso y la displasia epitelial severa resultaron los cambios hísticos más comunes. Los signos displásicos tisulares mayormente implicados fueron la alteración de los clavos interpapilares, pérdida de la polaridad de las células basales e hiperplasia de las células del estrato basal; mientras que los displásicos citológicos más relevantes resultaron la hipercromasia de núcleos y nucleolos, el pleomorfismo nuclear y el aumento de la relación núcleo-citoplasma, siendo el paladar blando el sitio más frecuente.  Conclusiones  todos los pacientes fumadores mostraron lesiones eritroplásicas al examen clínico bucal, lo cual fue confirmado por estudio histopatológico.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Foundation  erythroplasia is the most aggressive precancerous lesion in the oral cavity, with great potential for malignant transformation. At the time of performing the biopsy and analyzing the sample, severe dysplasia or invasive carcinoma may appear.  Objective  to describe the clinical and histopathological manifestations of oral erythroplasia in patients who are active tobacco smokers.  Methods  a descriptive and cross-sectional study was carried out, with 12 smokers clinically and histopathologically diagnosed with oral erythroplasia, attended in the Specialties Polyclinic stomatological consultation of the Saturnino Lora Torres Hospital, in Santiago de Cuba. For the collection of the primary data, a survey was made with the variables: age, sex, clinical diagnosis, time in the smoking habit, different ways of consuming tobacco, anatomical location and histopathological study of the disease.  Results  the male sex, the age group of 60 years old and over, and conventional smokers of 21 and over prevailed. Intense chronic inflammatory infiltrate and severe epithelial dysplasia were the most common tissue changes. The tissue dysplastic signs most involved were alteration of the interpapillary nails, loss of polarity of the basal cells, and hyperplasia of the basal layer cells; while the most relevant cytological dysplastics were hyperchromasia of nuclei and nucleoli, nuclear pleomorphism and increased nucleus-cytoplasm ratio, with the soft palate being the most frequent site.  Conclusions  all the smoking patients showed erythroplastic lesions on oral clinical examination, which was confirmed by histopathological study.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Eritroplasia]]></kwd>
<kwd lng="es"><![CDATA[fumar tabaco]]></kwd>
<kwd lng="es"><![CDATA[lesiones precancerosas]]></kwd>
<kwd lng="es"><![CDATA[mucosa bucal]]></kwd>
<kwd lng="en"><![CDATA[Erythroplasia]]></kwd>
<kwd lng="en"><![CDATA[tobacco smoking]]></kwd>
<kwd lng="en"><![CDATA[precancerous conditions]]></kwd>
<kwd lng="en"><![CDATA[mouth mucosa]]></kwd>
</kwd-group>
</article-meta>
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