<?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>2341-4545</journal-id>
<journal-title><![CDATA[GE-Portuguese Journal of Gastroenterology]]></journal-title>
<abbrev-journal-title><![CDATA[GE Port J Gastroenterol]]></abbrev-journal-title>
<issn>2341-4545</issn>
<publisher>
<publisher-name><![CDATA[Sociedade Portuguesa de Gastrenterologia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2341-45452021000200139</article-id>
<article-id pub-id-type="doi">10.1159/000507939</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[A Very Rare Case of Mass-Like Mesenteric Fat Necrosis in a Patient with Antiphospholipid Syndrome]]></article-title>
<article-title xml:lang="pt"><![CDATA[Esteatonecrose mesentérica encapsulada num doente com síndrome antifosfolipídico: um caso raro]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lourenço]]></surname>
<given-names><![CDATA[Ana Luísa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Dias]]></surname>
<given-names><![CDATA[João Lopes]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Marques]]></surname>
<given-names><![CDATA[Joana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bernardino]]></surname>
<given-names><![CDATA[Vera]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro Hospitalar e Universitário de Lisboa Central Radiology Department ]]></institution>
<addr-line><![CDATA[Lisbon ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro Hospitalar e Universitário de Lisboa Central Nephrology Department ]]></institution>
<addr-line><![CDATA[Lisbon ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Centro Hospitalar e Universitário de Lisboa Central Internal Medicine Department ]]></institution>
<addr-line><![CDATA[Lisbon ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>04</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>04</month>
<year>2021</year>
</pub-date>
<volume>28</volume>
<numero>2</numero>
<fpage>139</fpage>
<lpage>143</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S2341-45452021000200139&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S2341-45452021000200139&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S2341-45452021000200139&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Introduction: Intra-abdominal fat is a metabolically active tissue that can undergo necrosis due to torsion, infarction, or trauma. Despite being asymptomatic in most cases, fat necrosis or steatonecrosis can cause abdominal pain.  Case Presentation: This article describes the case of a male patient admitted to the emergency department with diffuse abdominal pain for the past month. The patient had a past medical history of antiphospholipid syndrome with multiple venous thromboembolic events and one episode of lower limb vasculitis, currently under anticoagulation treatment. Imaging studies with computed tomography and magnetic resonance revealed a mesenteric mass-like lesion adjacente to the ileal bowel loops. The patient underwent surgical resection, and the microscopic analysis revealed extensive organizing fat necrosis with reactive panniculitis and hemorrhage.  Discussion and Conclusion: This article describes a rare case of a mesenteric mass-like encapsulated fat necrosis in a patient with antiphospholipid syndrome, with very atypical location and imaging features.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo:  Introdução: A gordura intra-abdominal, sendo um tecido metabolicamente ativo, pode sofrer necrose por torsão, enfarte ou trauma. Na maioria dos casos a esteatonecrose é assintomática podendo, no entanto, cursar com dor abdominal.  Apresentação do Caso: Este artigo descreve o caso de um doente do sexo masculino que recorreu ao serviço de urgência por dor abdominal generalizada com um mês de evolução. O doente tinha síndrome antifosfolipídico e antecedentes de eventos trombóticos e vasculite dos membros inferiores, atualmente sob terapêutica anticoagulante. Estudos imagiológicos por tomografia computorizada e ressonância magnética revelaram uma massa mesentérica adjacente a ansas de íleon. O doente foi submetido a uma resseção cirúrgica e a análise microscópica demonstrou extensas áreas de esteatonecrose em organização, com paniculite reativa e hemorragia.  Discussão e Conclusão: Este artigo descreve um caso raro de esteatonecrose mesentérica encapsulada num doente com síndrome antifosfolipídico, com localização e apresentação imagiológica muito atípicas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Intra-abdominal steatonecrosis]]></kwd>
<kwd lng="en"><![CDATA[Panniculitis]]></kwd>
<kwd lng="en"><![CDATA[Antiphospholipid syndrome]]></kwd>
<kwd lng="pt"><![CDATA[Esteatonecrose intra-abdominal]]></kwd>
<kwd lng="pt"><![CDATA[Paniculite]]></kwd>
<kwd lng="pt"><![CDATA[Síndrome antifosfolipídico]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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