<?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>2183-1351</journal-id>
<journal-title><![CDATA[Acta Radiológica Portuguesa]]></journal-title>
<abbrev-journal-title><![CDATA[Acta Radiol Port]]></abbrev-journal-title>
<issn>2183-1351</issn>
<publisher>
<publisher-name><![CDATA[Sociedade Portuguesa de Radiologia e Medicina Nuclear]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2183-13512025000200031</article-id>
<article-id pub-id-type="doi">10.25748/arp.36223</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Cholesteatoma of the External Auditory Canal: A Common Entity at a Rare Site]]></article-title>
<article-title xml:lang="pt"><![CDATA[Colesteatoma do Canal Auditivo Externo: Entidade Comum num Local Raro]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vieira]]></surname>
<given-names><![CDATA[João]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[Marta]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Dutra]]></surname>
<given-names><![CDATA[Sofia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carneiro]]></surname>
<given-names><![CDATA[Paula]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cordeiro]]></surname>
<given-names><![CDATA[Pedro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital do Divino Espirito Santo de Ponta Delgada EPE Serviço de Radiologia ]]></institution>
<addr-line><![CDATA[Ponta Delgada ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2025</year>
</pub-date>
<volume>37</volume>
<numero>2</numero>
<fpage>31</fpage>
<lpage>32</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S2183-13512025000200031&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S2183-13512025000200031&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S2183-13512025000200031&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract External auditory canal cholesteatoma is a rare entity when compared with the middle ear cholesteatoma. Despite the rarity, the radiologist should be aware of the main imaging findings for the differential&#8217;s diagnosis and how to stage the lesion for the correct surgical management. This article describes a 51-year-old male patient with progressive right ear dull pain and hearing loss. In this context, a plain high-resolution temporal bone computed tomography scan was obtained, showing a well-defined soft tissue attenuating lesion in the external auditory canal with bone wall erosions and small bone flecks inside the lesion. The patient was submitted to a canaloplasty, which confirmed the diagnosis.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo O colesteatoma do canal auditivo externo é uma entidade rara quando é comparada com o colesteatoma do ouvido médio. Embora a raridade da lesão, o radiologista deverá estar atento aos principais achados imagiológicos de forma a definir corretamente os diagnósticos diferenciais e realizar o correto estadiamento, o qual tem implicação no tratamento cirúrgico do paciente. Apresentamos um artigo que detalha a história de um homem com 51 anos que descrevia dor progressiva no ouvido direito e perda auditiva. Neste contexto, realizou uma tomografia computorizada de alta resolução focando o osso temporal direito, demonstrando uma lesão de tecidos moles no canal auditivo externo, com erosões ósseas da parede e pequenos fragmentos ósseos no seu interior. O paciente foi submetido a canaloplastia, tendo sido confirmado o diagnóstico de colesteatoma do canal auditivo externo.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Cholesteatoma]]></kwd>
<kwd lng="en"><![CDATA[Middle ear]]></kwd>
<kwd lng="en"><![CDATA[Ear canal]]></kwd>
<kwd lng="en"><![CDATA[Hearing loss]]></kwd>
<kwd lng="en"><![CDATA[Tomography.]]></kwd>
<kwd lng="pt"><![CDATA[Colesteatoma]]></kwd>
<kwd lng="pt"><![CDATA[Ouvido médio]]></kwd>
<kwd lng="pt"><![CDATA[Canal auditivo]]></kwd>
<kwd lng="pt"><![CDATA[Perda auditive]]></kwd>
<kwd lng="pt"><![CDATA[Tomografia.]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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</article>
