<?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>S1646-58302025000100074</article-id>
<article-id pub-id-type="doi">10.69729/aogp.v19i1a09</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Uterine cyst - a rare cause of pelvic mass]]></article-title>
<article-title xml:lang="pt"><![CDATA[Quisto uterino - uma causa rara de massa pélvica]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tlemçani]]></surname>
<given-names><![CDATA[Inês]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castro]]></surname>
<given-names><![CDATA[Catarina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ribeirinho]]></surname>
<given-names><![CDATA[Ana Luísa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reis-De-Carvalho]]></surname>
<given-names><![CDATA[Catarina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital de Santa Maria  ]]></institution>
<addr-line><![CDATA[ ]]></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>19</volume>
<numero>1</numero>
<fpage>74</fpage>
<lpage>77</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S1646-58302025000100074&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S1646-58302025000100074&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S1646-58302025000100074&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The diagnosis and determination of the origin of a pelvic mass is often challenging. For masses of uterine origin, the differential diagnosis typically focuses on leiomyomas and uterine sarcomas, due to the higher incidence of the former and the severity associated with the latter. However, other uterine masses, such as those with cystic content, should also be considered. We present the case of a 49-year-old woman with a history of chronic pelvic pain and an ultrasonographic diagnosis of a cystic adnexal mass. During the surgical procedure, the cystic mass was found to originate from the uterine serosa. Histological analysis confirmed it to be an endometrial cyst, also known as a uterine endometrioma. This case highlights the importance of including endometrial cysts - a rare entity - in the differential diagnosis of cystic pelvic masses of uterine origin. Recognition of this condition is crucial for appropriate clinical management.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo O diagnóstico e a determinação da origem de uma massa pélvica é, frequentemente, um desafio. No caso de massas com origem uterina, o diagnóstico diferencial concentra-se habitualmente nos leiomiomas e nos sarcomas uterinos, devido à maior incidência dos primeiros e à gravidade associada aos segundos. Contudo, outras massas uterinas, como as de conteúdo quístico, devem igualmente ser consideradas. Apresentamos o caso de uma mulher de 49 anos, com história de dor pélvica crónica e diagnóstico ecográfico de uma massa anexial quística. Durante o procedimento cirúrgico, verificou-se que a massa quística tinha origem na serosa uterina. A análise histológica confirmou tratar-se de um quisto endometrial, também chamado de endometrioma uterino. Com este caso, pretendemos destacar a importância de incluir os quistos endometriais - uma entidade rara - no diagnóstico diferencial de massas pélvicas quísticas com origem uterina. A consideração desta entidade é essencial para um manejo clínico adequado.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Endometriosis]]></kwd>
<kwd lng="en"><![CDATA[Adenomyosis]]></kwd>
<kwd lng="en"><![CDATA[Uterine Cyst]]></kwd>
<kwd lng="en"><![CDATA[Laparoscopy]]></kwd>
<kwd lng="en"><![CDATA[Endometrioma.]]></kwd>
<kwd lng="pt"><![CDATA[Endometriose]]></kwd>
<kwd lng="pt"><![CDATA[Adenomiose, Quisto Uterino]]></kwd>
<kwd lng="pt"><![CDATA[Laparoscopia]]></kwd>
<kwd lng="pt"><![CDATA[Endometrioma.]]></kwd>
</kwd-group>
</article-meta>
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<person-group person-group-type="author">
<name>
<surname><![CDATA[Ranieri]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Ferrigni]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Schmitt]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Louie]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Retroperitoneal cystic endometriosis incidentally found at time of hysterectomy]]></article-title>
<source><![CDATA[J Minim Invasive Gynecol]]></source>
<year>2024</year>
<volume>31</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>456-9</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
