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<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>S2341-45452023000400064</article-id>
<article-id pub-id-type="doi">10.1159/000523774</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Two Cancers in One Barrett&#8217;s Segment: First Report of Concurrent Squamous Cell Carcinoma and Adenocarcinoma]]></article-title>
<article-title xml:lang="pt"><![CDATA[Duas neoplasias num segmento de Barrett: primeiro relato de carcinoma espinocelular e adenocarcinoma concomitantes]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zimmer]]></surname>
<given-names><![CDATA[Vincent]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bier]]></surname>
<given-names><![CDATA[Bert]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Metzger]]></surname>
<given-names><![CDATA[Myriam]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Glanemann]]></surname>
<given-names><![CDATA[Matthias]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Marienhausklinik St. Josef Kohlhof Department of Medicine ]]></institution>
<addr-line><![CDATA[Neunkirchen ]]></addr-line>
<country>Germany</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Saarland University Saarland University Medical Center Department of Medicine II]]></institution>
<addr-line><![CDATA[Homburg ]]></addr-line>
<country>Germany</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Insitute of Pathology Saarbrücken-Rastpfuhl  ]]></institution>
<addr-line><![CDATA[Saarbrücken ]]></addr-line>
<country>Germany</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Saarland University Saarland University Medical Center Institute of Pathology]]></institution>
<addr-line><![CDATA[Homburg ]]></addr-line>
<country>Germany</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Saarland University Saarland University Medical Center Department of General, Visceral, Vascular, and Pediatric Surgery]]></institution>
<addr-line><![CDATA[Homburg ]]></addr-line>
<country>Germany</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>08</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>08</month>
<year>2023</year>
</pub-date>
<volume>30</volume>
<numero>4</numero>
<fpage>64</fpage>
<lpage>66</lpage>
<copyright-statement/>
<copyright-year/>
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</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Streppel]]></surname>
<given-names><![CDATA[MM]]></given-names>
</name>
<name>
<surname><![CDATA[Siersema]]></surname>
<given-names><![CDATA[PD]]></given-names>
</name>
<name>
<surname><![CDATA[de Leng]]></surname>
<given-names><![CDATA[WW]]></given-names>
</name>
<name>
<surname><![CDATA[Morsink]]></surname>
<given-names><![CDATA[FH]]></given-names>
</name>
<name>
<surname><![CDATA[Vleggaar]]></surname>
<given-names><![CDATA[FP]]></given-names>
</name>
<name>
<surname><![CDATA[Maitra]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Squamous cell carcinoma in Barrett&#8217;s esophagus: field effect versus metastasis]]></article-title>
<source><![CDATA[Dis Esophagus]]></source>
<year>2012</year>
<volume>25</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>630-7</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Takeuchi]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Hatta]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Koike]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Saito]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Jin]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Asanuma]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A primary Barrett&#8217;s adenocarcinoma with a squamous cell carcinoma component]]></article-title>
<source><![CDATA[Intern Med]]></source>
<year>2019</year>
<volume>58</volume>
<numero>17</numero>
<issue>17</issue>
<page-range>2467-72</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mishima]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Amano]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Yuki]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Kusunoki]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Oka]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Uno]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A rare case of Barrett&#8217;s adenocarcinoma including squamous cell carcinoma component]]></article-title>
<source><![CDATA[Clin J Gastroenterol]]></source>
<year>2011</year>
<volume>4</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>5-9</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yamazaki]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Iwaya]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Iwaya]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Watanabe]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Seki]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Ochi]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A case of simultaneous esophageal squamous cell carcinoma and Barrett&#8217;s adenocarcinoma]]></article-title>
<source><![CDATA[Clin J Gastroenterol]]></source>
<year>2016</year>
<volume>9</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>222-7</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kobayashi]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Shiozaki]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Fujiwara]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Konishi]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Arita]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Kosuga]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A case of synchronous multiple esophageal cancers composed of squamous cell carcinoma and Barrett&#8217;s adenocarcinoma]]></article-title>
<source><![CDATA[Gan To Kagaku Ryoho]]></source>
<year>2015</year>
<volume>42</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>1890-2</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Maleki]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Shekarriz]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Nosrati]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Orang]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Simultaneous esophageal squamous cell carcinoma and adenocarcinoma: a case report.]]></article-title>
<source><![CDATA[Middle East J Dig Dis]]></source>
<year>2015</year>
<volume>7</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>257-60</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
