<?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>S0300-90412021000400009</article-id>
<article-id pub-id-type="doi">10.24245/gom.v89i4.4615</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Metaplasia ósea de endometrio: un raro diagnóstico diferencial de DIU traslocado: tratamiento histeroscópico. Reporte de caso]]></article-title>
<article-title xml:lang="en"><![CDATA[Endometrial osseous metaplasia: a rare differential diagnosis of translocated IUD: hysteroscopic management. Case Report]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez-Bonola]]></surname>
<given-names><![CDATA[Azael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valencia-Torres]]></surname>
<given-names><![CDATA[Miguel Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Olivares-Montano]]></surname>
<given-names><![CDATA[Alma Karina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto de Seguridad y Servicios Sociales para los Trabajadores del Estado Hospital 1° de Octubre ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital de la Mujer Departamento de Cirugía Endoscópica Ginecológica ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital de la Mujer  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<volume>89</volume>
<numero>4</numero>
<fpage>336</fpage>
<lpage>342</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0300-90412021000400009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0300-90412021000400009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0300-90412021000400009&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  ANTECEDENTES:  La metaplasia ósea de endometrio tiene una incidencia estimada de 3 casos por cada 10,000 mujeres y hay pocos casos reportados. Los síntomas son inespecíficos: dolor pélvico crónico, sangrado uterino anormal, dismenorrea y dispareunia. La mayoría de las pacientes padece infertilidad primaria o secundaria. Existen diferentes teorías de su fisiopatología. La ecografía pélvica endovaginal bidimensional desempeña un papel decisivo en el diagnóstico; la mayoría de los casos son un hallazgo de una estructura típica que mimetiza a un dispositivo intrauterino.  CASO CLÍNICO:  Paciente de 47 años, en la perimenopausia, con dolor pélvico crónico y sangrado uterino anormal. Acudió a consulta con un dispositivo intrauterino traslocado, advertido en la ultrasonografía de revisión ginecológica rutinaria, con antecedente aparente de habérselo retirado hacía 21 años. Durante la exploración no se observaron las riendas del DIU. En la histeroscopia de consultorio se observó metaplasia ósea de endometrio; se extrajeron los fragmentos óseos y los síntomas disminuyeron. Continuó en seguimiento en la clínica de climaterio, para tratamiento de los síntomas perimenopáusicos.  CONCLUSIONES:  La metaplasia ósea de endometrio es rara, con muy pocos casos reportados en el mundo, quizá por ser subdiagnosticada. La fisiopatología aún no es clara, aunque se aceptan sus diferentes teorías. Debe sospecharse en pacientes sin dispositivo intrauterino, ante hallazgos ultrasonográficos compatibles con su localización, asociados con sangrado uterino anormal y dolor pélvico crónico. La mayoría de los casos reportados se asocian con infertilidad. El diagnóstico definitivo y el tratamiento es con histeroscopia de consultorio, con grasper o resectoscopio histeroscópico.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  BACKGROUND:  Endometrial osseous metaplasia has an estimated incidence of 3 cases per 10,000 women and there are few reported cases. Symptoms are nonspecific: chronic pelvic pain, abnormal uterine bleeding, dysmenorrhea and dyspareunia. Most patients suffer from primary or secondary infertility. There are different theories of its pathophysiology. Two-dimensional endovaginal pelvic ultrasound plays a decisive role in the diagnosis; most cases are an incidental finding with a typical structure mimicking an intrauterine device.  CLINICAL CASE:  47-year-old female patient, in perimenopause, with chronic pelvic pain and abnormal uterine bleeding. She came for consultation with a translocated intrauterine device, noticed in the routine gynecological ultrasonography, with an apparent history of having had it removed 21 years ago. During the examination the reins of the IUD were not observed. Office hysteroscopy showed endometrial bone metaplasia; the bone fragments were removed, and her symptoms subsided. She continued to be followed up in the climacteric clinic for treatment of perimenopausal symptoms.  CONCLUSIONS:  Endometrial bone metaplasia is rare, with very few cases reported worldwide, perhaps because it is underdiagnosed. The pathophysiology is still unclear, although its different theories are accepted. It should be suspected in patients without an intrauterine device, in the presence of ultrasonographic findings compatible with its location, associated with abnormal uterine bleeding and chronic pelvic pain. Most of the reported cases are associated with infertility. The definitive diagnosis and treatment is with office hysteroscopy, with grasper or hysteroscopic resectoscope.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Metaplasia ósea de endometrio]]></kwd>
<kwd lng="es"><![CDATA[sangrado uterino anormal]]></kwd>
<kwd lng="es"><![CDATA[dismenorrea]]></kwd>
<kwd lng="es"><![CDATA[dispareunia]]></kwd>
<kwd lng="es"><![CDATA[infertilidad secundaria]]></kwd>
<kwd lng="es"><![CDATA[incidencia]]></kwd>
<kwd lng="en"><![CDATA[Endometrial osseous metaplasia]]></kwd>
<kwd lng="en"><![CDATA[Abnormal uterine bleeding]]></kwd>
<kwd lng="en"><![CDATA[Dysmenorrhea]]></kwd>
<kwd lng="en"><![CDATA[Dyspareunia]]></kwd>
<kwd lng="en"><![CDATA[Secondary infertility]]></kwd>
<kwd lng="en"><![CDATA[Incidence]]></kwd>
</kwd-group>
</article-meta>
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<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Acharya]]></surname>
<given-names><![CDATA[U]]></given-names>
</name>
<name>
<surname><![CDATA[Pinion]]></surname>
<given-names><![CDATA[SB]]></given-names>
</name>
<name>
<surname><![CDATA[Parkin]]></surname>
<given-names><![CDATA[DE]]></given-names>
</name>
<name>
<surname><![CDATA[Hamilton]]></surname>
<given-names><![CDATA[MP]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Osseous metaplasia of the endometrium treated by hysteroscopic resectomy]]></article-title>
<source><![CDATA[Br J Obstet Gynaecol]]></source>
<year>1993</year>
<volume>100</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>391-2</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
