<?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>2444-054X</journal-id>
<journal-title><![CDATA[Cirugía y cirujanos]]></journal-title>
<abbrev-journal-title><![CDATA[Cir. cir.]]></abbrev-journal-title>
<issn>2444-054X</issn>
<publisher>
<publisher-name><![CDATA[Academia Mexicana de Cirugía A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2444-054X2025000600008</article-id>
<article-id pub-id-type="doi">10.24875/ciru.25000018</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Evaluation of mediastinal lymphadenopathy from long-term radiological findings in COVID-19]]></article-title>
<article-title xml:lang="es"><![CDATA[Evaluación de la linfadenopatía mediastínica a partir de hallazgos radiológicos a largo plazo en COVID-19]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ayhan-Albayrak]]></surname>
<given-names><![CDATA[Gulhan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bardakci]]></surname>
<given-names><![CDATA[Mustafa I.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,University of Health Sciences Department of Chest Diseases ]]></institution>
<addr-line><![CDATA[Istanbul ]]></addr-line>
<country>Turkey</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2025</year>
</pub-date>
<volume>93</volume>
<numero>6</numero>
<fpage>636</fpage>
<lpage>643</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2444-054X2025000600008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2444-054X2025000600008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2444-054X2025000600008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: Mediastinal lymphadenopathy (MLAP) has been reported in post-COVID-19 patients. In this study, the relationship between post-COVID-19 infection and MLAP was investigated in patients who had been diagnosed with MLAP and decided to undergo surgery.  Methods: The study included the records of 140 patients who had been diagnosed with MLAP and were decided for surgical treatment. Demographic findings, reverse transcription-polymerase chain reaction (PCR) test results, chest X-ray, thorax computed tomography (CT) findings, positron emission tomography (PET)-CT findings, and histopathological results were recorded.  Results: SUVmax value above 2.5 was 15 times more common in patients with positive PCR test results than in patients with negative results. Abnormal chest X-ray results were associated with a 9.3-fold increase in the number of patients, and the number of patients with abnormal pathology results was 33.9 times higher than those with normal results.  Conclusions: Post-COVID-19 and MLAP (SUVmax 3-5) were shown to be associated independently of age, gender, comorbidities, and disease outcomes. MLAP lesions in patients with COVID-19 demonstrated SUVmax values that were 10-fold higher compared to patients without COVID-19. Determining reliable SUVmax values in patients with severe COVID-19 may help guide clinical decisions, tailor therapeutic approaches, and avoid unnecessary surgical indications.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: Se ha informado linfadenopatía mediastínica en pacientes que se recuperan de COVID-19. Nuestro objetivo fue investigar si la linfadenopatía mediastínica encontrada en pacientes con neumonía grave por COVID-19 al menos 6 meses después de la infección está asociada con la enfermedad.  Métodos: El estudio incluyó los registros de 140 pacientes a quienes se les había diagnosticado MLAP y se decidió que recibirían tratamiento quirúrgico. Los hallazgos demográficos se compararon mediante los resultados de RT-PCR, TC de tórax y PET-CT.  Resultados: Un valor de SUVmax superior a 2,5 fue 15 veces más frecuente en pacientes con resultados positivos en la prueba PCR que en aquellos con resultados negativos. Los resultados anormales en la radiografía de tórax se asociaron con un aumento de 9,3 veces en el número de pacientes, y el número de pacientes con resultados anormales en las pruebas de anatomía patológica fue 33,9 veces mayor que el de aquellos con resultados normales.  Conclusiones: Se demostró que la presencia de MLAP (SUVmax 3-5) tras la COVID-19 se asocia independientemente de la edad, el sexo, las comorbilidades y la evolución de la enfermedad. Las lesiones de MLAP en pacientes con COVID-19 mostraron valores de SUVmax 10 veces superiores a los de los pacientes sin COVID-19. Determinar valores fiables de SUVmax en pacientes con COVID-19 grave puede ayudar a orientar las decisiones clínicas, personalizar los enfoques terapéuticos y evitar indicaciones quirúrgicas innecesarias.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Mediastinal lymphadenopathy]]></kwd>
<kwd lng="en"><![CDATA[SUVmax]]></kwd>
<kwd lng="en"><![CDATA[Surgical indication]]></kwd>
<kwd lng="en"><![CDATA[Positron emission tomography]]></kwd>
<kwd lng="en"><![CDATA[Post-COVID-19]]></kwd>
<kwd lng="es"><![CDATA[Linfadenopatía mediastínica]]></kwd>
<kwd lng="es"><![CDATA[SUVmax]]></kwd>
<kwd lng="es"><![CDATA[Indicación quirúrgica]]></kwd>
<kwd lng="es"><![CDATA[Tomografía por emisión de positrones]]></kwd>
<kwd lng="es"><![CDATA[Post-COVID-19]]></kwd>
</kwd-group>
</article-meta>
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