<?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>2795-5001</journal-id>
<journal-title><![CDATA[Portuguese Journal of Dermatology and Venereology]]></journal-title>
<abbrev-journal-title><![CDATA[Port J Dermatol Venereol.]]></abbrev-journal-title>
<issn>2795-5001</issn>
<publisher>
<publisher-name><![CDATA[Permanyer Publications]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2795-50012025000100034</article-id>
<article-id pub-id-type="doi">10.24875/pjdv.24000089</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Skin manifestations and dermatological diseases in COPD: a cross-sectional study and brief narrative review]]></article-title>
<article-title xml:lang="pt"><![CDATA[Manifestações cutâneas e doenças dermatológicas na DPOC: um estudo transversal e breve revisão narrativa]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tribolet-Abreu]]></surname>
<given-names><![CDATA[Inês]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Patrocínio]]></surname>
<given-names><![CDATA[João]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sargento]]></surname>
<given-names><![CDATA[Dora]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Filipe]]></surname>
<given-names><![CDATA[Paulo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
<xref ref-type="aff" rid="A a"/>
<xref ref-type="aff" rid="A4"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Unidade Local de Saúde Santa Maria Serviço de Dermatologia ]]></institution>
<addr-line><![CDATA[Lisbon ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,University of Lisbon Faculty of Medicine ]]></institution>
<addr-line><![CDATA[Lisbon ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Unidade Local de Saúde Santa Maria Serviço de Medicina Interna ]]></institution>
<addr-line><![CDATA[Lisbon ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Instituto de Medicina Molecular João Lobo Antunes Instituto de Medicina Molecular João Lobo Antunes ]]></institution>
<addr-line><![CDATA[Lisbon ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2025</year>
</pub-date>
<volume>83</volume>
<numero>1</numero>
<fpage>34</fpage>
<lpage>39</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S2795-50012025000100034&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S2795-50012025000100034&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S2795-50012025000100034&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objectives: This study aims to pinpoint dermatological disorders or cutaneous manifestations that correlate with chronic obstructive pulmonary disease (COPD), determining whether these associations persist independently of respiratory insufficiency or neoplastic disease.  Methods: A cross-sectional cohort study was conducted, with prospective data collection of patients admitted to the internal medicine ward of a tertiary hospital, over a 6-month period. Participants included patients diagnosed with cigarette smoke-induced COPD and a control group without COPD. Collected data included demographics and medical history (tobacco use, dermatological diseases, malignancy, respiratory insufficiency, etc.). All patients underwent a dermatological examination to detect the following skin manifestations: xerosis, malar exanthema, Thinker&#8217;s sign, tobacco stains, nail clubbing, Beau&#8217;s lines, Muehrcke&#8217;s lines, koilonychia, longitudinal melanonychia, onycholysis, onychomycosis, onychorrexis, and paronychia.  Results: Of the 187 patients analyzed, 94 (50.3%) had COPD. The most common skin findings were xerosis, onychomycosis, and clubbing. Statistical analysis revealed significant associations of xerosis, nicotine stains, and clubbing with COPD. The presence of neoplastic disease was identified as a confounder of the association between xerosis and COPD. The presence of chronic respiratory insufficiency was not a confounding factor.  Conclusions: This study underscores the prevalence of xerosis and clubbing in patients with cigarette smoke-induced COPD. These findings advocate for heightened clinical awareness and prompt treatment of symptomatic xerosis in COPD patients and that the presence of clubbing does not require an alternative diagnosis to be sought.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Objetivos: Este estudo visa identificar doenças dermatológicas e alterações cutâneas que se correlacionem com a DPOC, determinando se estas associações persistem independentemente de insuficiência respiratória ou doença oncológica.  Métodos: Foi realizado um estudo de coorte transversal, com colheita prospetiva de dados de pacientes internados na enfermaria de Medicina Interna de um hospital terciário, ao longo de um período de 6 meses. Os participantes incluíram pacientes diagnosticados com DPOC induzida pelo tabaco e um grupo de controlo sem DPOC. Os dados coletados incluíram informação demográfica e antecedentes pessoais (uso de tabaco, doenças dermatológicas, doença oncológica, insuficiência respiratória, etc.). Todos os pacientes foram submetidos a um exame dermatológico para detetar as seguintes manifestações cutâneas: xerose, exantema malar, sinal de Thinker, manchas de nicotina, hipocratismo digital, linhas de Beau, linhas de Muehrcke, coiloniquia, melanoniquia, onicólise, onicomicose, onicorrexia e paroníquia.  Resultados: Dos 187 pacientes analisados, 94 (50,3%) tinham DPOC. As manifestações cutâneas mais comuns foram xerose, onicomicose e hipocratismo digital. A análise estatística revelou associações significativas de xerose, manchas de nicotina e hipocratismo digital com a DPOC. A presença de doença oncológica foi identificada como um fator de confusão na associação entre xerose e DPOC. A presença de insuficiência respiratória crónica não se revelou fator confundidor.  Conclusões: Este estudo destaca a prevalência de xerose e hipocratismo digital em pacientes com DPOC induzida pelo tabagismo. Esses achados defendem uma maior conscientização clínica e tratamento precoce da xerose sintomática em pacientes com DPOC, assim como que a presença de hipocratismo digital não obriga à procura de um diagnóstico alternativo.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Chronic obstructive pulmonary disease]]></kwd>
<kwd lng="en"><![CDATA[Skin]]></kwd>
<kwd lng="en"><![CDATA[Nails]]></kwd>
<kwd lng="en"><![CDATA[Respiratory insufficiency]]></kwd>
<kwd lng="en"><![CDATA[Neoplasms]]></kwd>
<kwd lng="en"><![CDATA[Digital clubbing]]></kwd>
<kwd lng="pt"><![CDATA[DPOC]]></kwd>
<kwd lng="pt"><![CDATA[Pele]]></kwd>
<kwd lng="pt"><![CDATA[Unhas]]></kwd>
<kwd lng="pt"><![CDATA[Insuficiência respiratória]]></kwd>
<kwd lng="pt"><![CDATA[Neoplasias]]></kwd>
<kwd lng="pt"><![CDATA[Hipocratismo digital]]></kwd>
</kwd-group>
</article-meta>
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