<?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>1646-5830</journal-id>
<journal-title><![CDATA[Acta Obstétrica e Ginecológica Portuguesa]]></journal-title>
<abbrev-journal-title><![CDATA[Acta Obstet Ginecol Port]]></abbrev-journal-title>
<issn>1646-5830</issn>
<publisher>
<publisher-name><![CDATA[Euromédice, Edições Médicas Lda.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1646-58302021000300286</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Primary endometrial endometrioid carcinoma with signet ring cells: why is this a special case?]]></article-title>
<article-title xml:lang="pt"><![CDATA[Carcinoma endometrióide endometrial primário com células em anel de sinete: porquê um caso especial?]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moreira]]></surname>
<given-names><![CDATA[Cristiana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barros]]></surname>
<given-names><![CDATA[Tânia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sá]]></surname>
<given-names><![CDATA[Diogo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ferreira]]></surname>
<given-names><![CDATA[Luísa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morgado]]></surname>
<given-names><![CDATA[Alexandre]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro Hospitalar Universitário do Porto Centro Materno Infantil do Norte ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>09</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>09</month>
<year>2021</year>
</pub-date>
<volume>15</volume>
<numero>3</numero>
<fpage>286</fpage>
<lpage>288</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S1646-58302021000300286&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S1646-58302021000300286&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S1646-58302021000300286&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract A 76 years old woman presented to our emergency department because of post-menopausal bleeding in June 2019. Gynaecological ultrasound was performed detecting an heterogeneous endometrial thickness of 9,3 mm. An endometrial biopsy with Novak system was performed showing an endometrioid adenocarcinoma. A total hysterectomy with adnexectomy along with lymph node dissection and pelvic washing was performed for tumour staging. Anatomopathological and histological evaluationrevealed a primary endometrial endometrioid adenocarcinoma with signet ring cells that was confirmed by immunohistochemical studies and imaging/endoscopic studies that excluded non-gynaecological tumour origin.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Endometrial adenocarcinoma]]></kwd>
<kwd lng="en"><![CDATA[Oncology]]></kwd>
<kwd lng="en"><![CDATA[Signet ring cells.]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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</article>
