<?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>0026-1742</journal-id>
<journal-title><![CDATA[Revista de la Facultad de Medicina (México)]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Fac. Med. (Méx.)]]></abbrev-journal-title>
<issn>0026-1742</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Medicina]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0026-17422022000400024</article-id>
<article-id pub-id-type="doi">10.22201/fm.24484865e.2022.65.4.03</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Tricobezoar gástrico y gastroduodenal en pediatría. Reporte de 2 casos e implicaciones quirúrgicas]]></article-title>
<article-title xml:lang="en"><![CDATA[Gastric and Gastroduodenal Trichobezoar in Pediatrics. Report of 2 Cases and surgical Implications]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Blanco Tapia]]></surname>
<given-names><![CDATA[Sergio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jauregui Paravicini]]></surname>
<given-names><![CDATA[Lorena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carvajal Tapia]]></surname>
<given-names><![CDATA[Aarón Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital de Niños &#8220;Dr. Mario Ortiz Suárez&#8221;  ]]></institution>
<addr-line><![CDATA[Santa Cruz ]]></addr-line>
<country>Bolivia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital de Niños &#8220;Dr. Mario Ortiz Suárez&#8221;  ]]></institution>
<addr-line><![CDATA[Santa Cruz ]]></addr-line>
<country>Bolivia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital de Niños &#8220;Dr. Mario Ortiz Suárez&#8221;  ]]></institution>
<addr-line><![CDATA[Santa Cruz ]]></addr-line>
<country>Bolivia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<volume>65</volume>
<numero>4</numero>
<fpage>24</fpage>
<lpage>29</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0026-17422022000400024&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0026-17422022000400024&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0026-17422022000400024&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El tricobezoar es una variedad de los bezoarios cuya característica es la presencia de una masa compacta constituida por material no digerible, principalmente cabellos y otros componentes.  Presentación de casos: Se presentan 2 casos de pacientes de 4 y 9 años, quienes ingresaron por emergencias, con evolución clínica crónica caracterizada por una masa abdominal palpable, pérdida de peso progresiva asociada a tricofagia-tricotilomania, con presunción diagnóstica de ingreso de bezoar gástrico. La ecografía abdominal en ambos pacientes reportó imagen ecorefringente en su interior que produce sombra acústica, compatible con probable tricobezoar, diagnóstico reforzado por tomografía computarizada con contraste. Dada la imposibilidad de extracción vía endoscópica por el gran tamaño, se optó por realizar laparotomía exploratoria, extrayéndose en los 2 casos la masa en bloque completa a través de una gastrotomía. Las pacientes presentaron una evolución favorable, recibiendo alimentación parenteral por 5 días y luego ingesta oral con buena tolerancia, dando de alta hospitalaria a su 9° y 10° día postoperatorio, con seguimiento interdisciplinario y apoyo psicológico. Debe considerarse como primera posibilidad diagnóstica el tricobezoar ante presencia de tricotilomanía, compromiso afectivo, retraso psicomotor, clínica intestinal. En estos casos el manejo neuropsiquiátrico postquirúrgico es fundamental a fin de reducir el riesgo de recurrencias.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The trichobezoar is a variety of bezoars whose characteristic is the presence of a compact mass made up of indigestible material, mainly hair and other components.  Presentation of cases: We present 2 cases of patients aged 4 and 9 years, who were admitted to an emergency room, with symptoms of chronic evolution characterized by a palpable abdominal mass, progressive weight loss associated with trichophagia-trichotillomania, with presumed diagnosis of gastric bezoar admission. The abdominal ultrasound in both reported an echorefringent image inside that produces an acoustic shadow, compatible with a probable trichobezoar, a diagnosis reinforced by contrast-enhanced computed tomography. Given the impossibility of endoscopic extraction due to the large size, it was decided to perform exploratory laparotomy, extracting the complete en-bloc mass through a gastrotomy in both cases. The patients presented a favorable evolution, receiving parenteral feeding for 5 days and then oral ingestion with good tolerance, being discharged from hospital on their 9th and 10th postoperative day with interdisciplinary follow-up and psychological support. There is a high suspicion of trichobezoar in the presence of trichotillomania, affective compromise, psychomotor retardation, intestinal symptoms and postsurgical neuropsychiatric management is essential in order to reduce the risk of recurrence.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Bezoares]]></kwd>
<kwd lng="es"><![CDATA[tricotilomanía]]></kwd>
<kwd lng="es"><![CDATA[enfermedades gastrointestinales]]></kwd>
<kwd lng="en"><![CDATA[Bezoars]]></kwd>
<kwd lng="en"><![CDATA[trichotillomania]]></kwd>
<kwd lng="en"><![CDATA[gastrointestinal diseases]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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