<?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>2444-054X</journal-id>
<journal-title><![CDATA[Cirugía y cirujanos]]></journal-title>
<abbrev-journal-title><![CDATA[Cir. cir.]]></abbrev-journal-title>
<issn>2444-054X</issn>
<publisher>
<publisher-name><![CDATA[Academia Mexicana de Cirugía A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2444-054X2024000500018</article-id>
<article-id pub-id-type="doi">10.24875/ciru.21000713</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Carcinoma adenoneuroendocrino mixto: reporte de caso]]></article-title>
<article-title xml:lang="en"><![CDATA[Mixed adenoneuroendocrine carcinoma: case report]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Moreno]]></surname>
<given-names><![CDATA[Ángel A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Durón-Gutiérrez]]></surname>
<given-names><![CDATA[Carlos E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Serrano-González]]></surname>
<given-names><![CDATA[Sheyla P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[León-Martínez]]></surname>
<given-names><![CDATA[Grettel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arroyo-Del-Castillo]]></surname>
<given-names><![CDATA[José G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Seguridad y Servicios Sociales de los Trabajadores del Estado (ISSSTE) Hospital Regional Lic. Adolfo López Mateos Servicio de Cirugía Plástica y Reconstructiva]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital General Tacuba, ISSSTE Servicio de Cirugía General ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital General Tacuba, ISSSTE Servicio de Anatomía Patológica ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Secretaría de Salud de la Ciudad de México Instituto Nacional de Neurología y Neurocirugía Servicio de Neurocirugía]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2024</year>
</pub-date>
<volume>92</volume>
<numero>5</numero>
<fpage>674</fpage>
<lpage>678</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2444-054X2024000500018&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2444-054X2024000500018&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2444-054X2024000500018&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: El carcinoma adenoneuroendocrino mixto es un tumor raro del tracto gastrointestinal con doble diferenciación en carcinoma adenomatoso y neuroendocrino, cada componente con al menos el 30%.  Caso clínico: Mujer de 60 años con cuadro de dolor abdominal agudo. Se decide tratamiento quirúrgico, encontrando un tumor a nivel de ciego y colon ascendente, y se realizan hemicolectomía derecha e ileostomía.  Discusión: El carcinoma adenoneuroendocrino mixto puede aparecer en diversos órganos. Son tumores muy malignos, con alto riesgo de metástasis.  Conclusiones: Estos tumores no presentan síntomas ni hallazgos radiológicos o de laboratorio específicos; el diagnóstico depende de estudios histopatológicos e inmunohistoquímicos posoperatorios.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introducción: Mixed adenoneuroendocrine carcinoma is a rare tumor of the gastrointestinal tract with double differentiation into adenomatous and neuroendocrine carcinoma, each component with at least 30%.  Case report: A 60-year-old female with acute abdominal pain. Surgical treatment was decided, finding a tumor at the level of the cecum and ascending colon, a right hemicolectomy and ileostomy were performed.  Discussion: Mixed adenoneuroendocrine carcinoma can appear in various organs. They are highly malignant tumors, with a high risk of metastasis.  Conclusions: These tumors do not present symptoms or specific radiological or laboratory findings; diagnosis depends on postoperative histopathological and immunohistochemical studies.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Carcinoma adenoneuroendocrino mixto]]></kwd>
<kwd lng="es"><![CDATA[Diferenciación adenocarcinomatosa]]></kwd>
<kwd lng="es"><![CDATA[Diferenciación neuroendocrina]]></kwd>
<kwd lng="es"><![CDATA[Cáncer colorrectal]]></kwd>
<kwd lng="en"><![CDATA[Mixed adenoneuroendocrine carcinoma]]></kwd>
<kwd lng="en"><![CDATA[Adenocarcinomatous differentiation]]></kwd>
<kwd lng="en"><![CDATA[Neuroendocrine differentiation]]></kwd>
<kwd lng="en"><![CDATA[Colorectal cancer]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Paredes]]></surname>
<given-names><![CDATA[MC]]></given-names>
</name>
<name>
<surname><![CDATA[Velasco]]></surname>
<given-names><![CDATA[AA]]></given-names>
</name>
<name>
<surname><![CDATA[Wong-Achi]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Carcinoma adenoneuroendocrino mixto de la ampolla de Vater:reporte de caso]]></article-title>
<source><![CDATA[Rev Cir]]></source>
<year>2019</year>
<volume>71</volume>
<page-range>261-5</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[Bosolino]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Ratto]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Tumores neuroendocrinos de colon y recto]]></article-title>
<source><![CDATA[Acta Gastroenterol Latinoam]]></source>
<year>2019</year>
<volume>48</volume>
<page-range>327-37</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[González González]]></surname>
<given-names><![CDATA[HH]]></given-names>
</name>
<name>
<surname><![CDATA[Skrove]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
<name>
<surname><![CDATA[Sharma]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Sobrado]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A rare case of mixed adenoneuroendocrine carcinoma of the ileocecal valve]]></article-title>
<source><![CDATA[Cureus]]></source>
<year>2019</year>
<volume>11</volume>
</nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gualdrini Ubaldo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cáncer colorrectal en la Argentina:organización, cobertura y calidad de las acciones de prevención y control]]></article-title>
<source><![CDATA[Instituto Nacional del Cancer]]></source>
<year>2011</year>
<volume>1</volume>
<page-range>1-329</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[Oneda]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Liserre]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Bianchi]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Rota LSavelli]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Zorzi]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diagnosis of mixed adenoneuroendocrine carcinoma (MANEC) after neoadjuvant chemotherapy for pancreatic and gastric adenocarcinoma:two case reports and a review of the literature]]></article-title>
<source><![CDATA[Case Rep Oncol]]></source>
<year>2019</year>
<volume>12</volume>
<page-range>434-42</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[Harada]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Sato]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Ikeda]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Clinicopathologic study of mixed adenoneuroendocrine carcinomas of hepatobiliary organs]]></article-title>
<source><![CDATA[Virchows Arch]]></source>
<year>2012</year>
<volume>460</volume>
<page-range>281-9</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gurzu]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Kadar]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Bara]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Bara Jr]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Tamasi]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Azamfirei]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mixed adenoneuroendocrine carcinoma of gastrointestinal tract:report of two cases]]></article-title>
<source><![CDATA[World J Gastroenterol]]></source>
<year>2015</year>
<volume>21</volume>
<page-range>1329-33</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Düzköylü]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Aras]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Bostanc&#305;]]></surname>
<given-names><![CDATA[EB]]></given-names>
</name>
<name>
<surname><![CDATA[Keklik Temuçin]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Ula&#351;]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mixed adeno-neuroendocrine carcinoma;case series of ten patients with review of the literature]]></article-title>
<source><![CDATA[Balkan Med J]]></source>
<year>2018</year>
<volume>35</volume>
<page-range>263-7</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[La Rosa]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Marando]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Sessa]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Capella]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mixed adenoneuroendocrine carcinomas (MANECs) of the gastrointestinal tract:an update]]></article-title>
<source><![CDATA[Cancers (Basel)]]></source>
<year>2012</year>
<volume>4</volume>
<page-range>11-30</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Paspala]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Machairas]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Prodromidou]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Spartalis]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Ioannidis]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Kostakis]]></surname>
<given-names><![CDATA[ID]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Management of MANEC of the colon and rectum:a comprehensive review of the literature]]></article-title>
<source><![CDATA[Mol Clin Oncol]]></source>
<year>2018</year>
<volume>9</volume>
<page-range>219-22</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sato]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
<name>
<surname><![CDATA[Tsuchikawa]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Yamada]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Sato]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Nakanishi]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Asano]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Metastatic mixed adenoneuroendocrine carcinoma of the liver successfully resected by hepatic trisectionectomy following chemotherapy:a case report]]></article-title>
<source><![CDATA[Clin Case Rep]]></source>
<year>2019</year>
<volume>7</volume>
<page-range>491-6</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nishida]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Blay]]></surname>
<given-names><![CDATA[JY]]></given-names>
</name>
<name>
<surname><![CDATA[Hirota]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Kitagawa]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Kang]]></surname>
<given-names><![CDATA[YK]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The standard diagnosis, treatment, and follow-up of gastrointestinal stromal tumors based on guidelines]]></article-title>
<source><![CDATA[Gastric Cancer]]></source>
<year>2016</year>
<volume>19</volume>
<page-range>3-14</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
