<?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>0300-9041</journal-id>
<journal-title><![CDATA[Ginecología y obstetricia de México]]></journal-title>
<abbrev-journal-title><![CDATA[Ginecol. obstet. Méx.]]></abbrev-journal-title>
<issn>0300-9041</issn>
<publisher>
<publisher-name><![CDATA[Federación Mexicana de Colegios de Obstetricia y Ginecología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0300-90412023000900007</article-id>
<article-id pub-id-type="doi">10.24245/gom.v91i9.8407</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Cáncer de mama metastásico y embarazo: reporte de caso]]></article-title>
<article-title xml:lang="en"><![CDATA[Metastatic breast cancer and pregnancy: a case report.]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salas Gil]]></surname>
<given-names><![CDATA[Elide Berenisse]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barbabosa Vilchis]]></surname>
<given-names><![CDATA[Jorge Arturo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Palestino Rojas]]></surname>
<given-names><![CDATA[Guillermo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro Médico Naval  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro Médico Naval  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Centro Médico Naval  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<volume>91</volume>
<numero>9</numero>
<fpage>679</fpage>
<lpage>686</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0300-90412023000900007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0300-90412023000900007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0300-90412023000900007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  ANTECEDENTES: El cáncer de mama es la segunda neoplasia maligna más común asociada con el embarazo. Su tratamiento es complejo debido a los riesgos en el feto en el contexto del tratamiento de la madre.  CASO CLÍNICO: Paciente de 28 años, enviada del Hospital Naval de Chetumal, Quintana Roo, con 13.1 semanas de embarazo por fecha de la última menstruación. En la tomografía computada se advirtió la existencia de un derrame pleural del 70%, otro pericárdico y sospecha de metástasis osteoblástica a la columna torácica. En la exploración física se encontró con dinámica ventilatoria, amplexión y amplexación disminuida derecha, hipoventilación interescapular y basal derecha, con disminución a la trasmisión de voz, submatidez basal derecha y, hacia el lado izquierdo, un murmullo vesicular. Los estudios citoquímico y citológico de líquido pericárdico y pleural se reportaron positivos para malignidad. En la resonancia magnética de la columna se encontraron lesiones sugerentes de actividad tumoral en los cuerpos vertebrales T12 a L5. Debido al avanzado estado metastásico del cáncer se propuso la interrupción del embarazo con el propósito de no retrasar el tratamiento. El perfil biológico reportó: inmunofenotipo triple negativo (receptores de estrógeno y progesterona: negativo, HER2: negativo en células neoplásicas). Se le indicó tratamiento con quimioterapia sistémica (carboplatino-paclitaxel).  CONCLUSIÓN: El diagnóstico de cáncer de mama durante el embarazo dificulta la detección e interpretación de las anormalidades mamarias, retrasa el diagnóstico, permite el crecimiento del tumor y se incrementa el riesgo metastásico de la enfermedad. El tratamiento oncológico adecuado y su valoración multidisciplinaria son decisivos para favorecer la supervivencia.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  BACKGROUND: Breast cancer is the second most common malignancy associated with pregnancy. Its treatment is complex due to fetal risks in the context of treatment of the mother.  CLINICAL CASE: 28-year-old patient, referred from the Naval Hospital of Chetumal, Quintana Roo, with 13.1 weeks of pregnancy by date of last menstrual period. The CT scan showed a 70% pleural effusion, another pericardial effusion and suspicion of osteoblastic metastasis to the thoracic spine. Physical examination showed ventilatory dynamics, decreased right amplexion and amplexation, interscapular and right basal hypoventilation, with decreased voice transmission, right basal submatitis and, to the left side, a vesicular murmur. Cytochemical and cytological studies of pericardial and pleural fluid were positive for malignancy. MRI of the spine showed lesions suggestive of tumor activity in the vertebral bodies T12 to L5. Due to the advanced metastatic stage of the cancer, termination of pregnancy was proposed in order not to delay treatment. The biological profile reported: triple negative immunophenotype (estrogen and progesterone receptors: negative, HER2: negative in neoplastic cells). Treatment with systemic chemotherapy (carboplatin-paclitaxel) was indicated.  CONCLUSION: The diagnosis of breast cancer during pregnancy hinders the detection and interpretation of breast abnormalities, delays diagnosis, allows tumor growth and increases the metastatic risk of the disease. Adequate oncologic treatment and its multidisciplinary assessment are decisive in favoring survival.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Cáncer de mama]]></kwd>
<kwd lng="es"><![CDATA[embarazo]]></kwd>
<kwd lng="es"><![CDATA[metástasis]]></kwd>
<kwd lng="es"><![CDATA[riesgos del feto]]></kwd>
<kwd lng="es"><![CDATA[derrame pleural]]></kwd>
<kwd lng="es"><![CDATA[derrame pericárdico]]></kwd>
<kwd lng="es"><![CDATA[hipoventilación]]></kwd>
<kwd lng="es"><![CDATA[receptores, progesterona]]></kwd>
<kwd lng="en"><![CDATA[Breast cancer]]></kwd>
<kwd lng="en"><![CDATA[Pregnancy]]></kwd>
<kwd lng="en"><![CDATA[Metastasis]]></kwd>
<kwd lng="en"><![CDATA[Fetal risks]]></kwd>
<kwd lng="en"><![CDATA[Pleural effusion]]></kwd>
<kwd lng="en"><![CDATA[Pericardial effusion]]></kwd>
<kwd lng="en"><![CDATA[Hypoventilation]]></kwd>
<kwd lng="en"><![CDATA[Receptors, Progesterone]]></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[Santos-Bolívar]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Reyna-Villasmil]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Torres-Cepeda]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Neoplasias ginecológicas malignas y embarazo]]></article-title>
<source><![CDATA[Rev Obstet Ginecol Venez]]></source>
<year>2012</year>
<volume>72</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>123-32</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[Sajid]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Shomaila]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Humaria]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Breast cancer during pregnancy]]></article-title>
<source><![CDATA[Cureus]]></source>
<year>2018</year>
<volume>10</volume>
<numero>7</numero>
<issue>7</issue>
</nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chun Chun]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Zhigan]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Juan]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Prognosis of pregnancy-associated breast cancer: a meta-analysis]]></article-title>
<source><![CDATA[BMC]]></source>
<year>2020</year>
<numero>20</numero>
<issue>20</issue>
<page-range>746</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[Matty&#8217;s]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Shalini]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Kanishka]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cancer in pregnancy]]></article-title>
<source><![CDATA[Int J Gynecol Obstet]]></source>
<year>2018</year>
<volume>143</volume>
<page-range>137-14</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[Vera]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Joosje]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Carlota]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Elyce]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Ingrid]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Liesbeth]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Frederic]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Management of pregnancy in women with cancer]]></article-title>
<source><![CDATA[Int J Gynecol Cancer]]></source>
<year>2021</year>
<numero>31</numero>
<issue>31</issue>
<page-range>314-22</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[Soto]]></surname>
<given-names><![CDATA[JG]]></given-names>
</name>
<name>
<surname><![CDATA[Martinez]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[FA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Embarazo y cáncer de mama en el primer trimestre, reporte de un caso y revisión de la literatura]]></article-title>
<source><![CDATA[Clin Invest Gin Obst]]></source>
<year>2018</year>
<volume>45</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>137-40</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[Carolina]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Rodrigo]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Rodrigo]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Henry]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Actualización del manejo clinico del cancer mamario asociado al embarazo. Revision de la literatura]]></article-title>
<source><![CDATA[Rev Fac Med]]></source>
<year>2018</year>
<numero>20</numero>
<issue>20</issue>
<page-range>24-32</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[Soumaya]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Ishita]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Shaza]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Halema]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Ala-Eddin]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Breast cancer during pregnancy: a marked propensity to triple-negative phenotype. Front]]></article-title>
<source><![CDATA[Oncol]]></source>
<year>2020</year>
<numero>10</numero>
<issue>10</issue>
<page-range>580345</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[Audrey]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Linden]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Sarfaraz]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Sandra]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Quan]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Diagnosis and management of metastatic breast cancer in a 33-year-old Pregnant Female: A case report]]></article-title>
<source><![CDATA[Cureus]]></source>
<year>2019</year>
<volume>11</volume>
<numero>7</numero>
<issue>7</issue>
</nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ingrid]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Christianne]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Philip]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Breast cancer during pregnancy: epidemiology, phenotypes, presentation during pregnancy and therapeutic modalities]]></article-title>
<source><![CDATA[Best Practice &amp; Research Clinical Obstetrics and Gynaecology]]></source>
<year>2022</year>
<volume>82</volume>
<page-range>46-59</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[Francesca]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Marco]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Chiara]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Update on the management of breast cancer during pregnancy]]></article-title>
<source><![CDATA[Cancers]]></source>
<year>2020</year>
<volume>12</volume>
<page-range>3616</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
