<?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>0120-2448</journal-id>
<journal-title><![CDATA[Acta Medica Colombiana]]></journal-title>
<abbrev-journal-title><![CDATA[Acta Med Colomb]]></abbrev-journal-title>
<issn>0120-2448</issn>
<publisher>
<publisher-name><![CDATA[Asociacion Colombiana de Medicina Interna]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-24482022000300120</article-id>
<article-id pub-id-type="doi">10.36104/amc.2022.2336</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Pituitary apoplexy. An unusual cause of thunderclap headaches]]></article-title>
<article-title xml:lang="es"><![CDATA[Apoplejía hipofisaria. Una causa inusual de cefalea tipo trueno]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[ESCOBAR-MERA]]></surname>
<given-names><![CDATA[MARÍA ANTONIA]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[RODRÍGUEZ-RINCÓN]]></surname>
<given-names><![CDATA[GILBERTO]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[CASANOVA-VALDERRAMA]]></surname>
<given-names><![CDATA[MARÍA EUGENIA]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[CÁRDENAS-PRIETO]]></surname>
<given-names><![CDATA[JOSÉ MAURICIO]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[ABREU-LOMBA]]></surname>
<given-names><![CDATA[ALIN]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Libre  ]]></institution>
<addr-line><![CDATA[Cali ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Consorcio Clínica Nueva Rafael Uribe Uribe  ]]></institution>
<addr-line><![CDATA[Cali ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Libre Departamento de Medicina Interna GIMI ]]></institution>
<addr-line><![CDATA[Cali ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Consorcio Clínica Nueva Rafael Uribe Uribe  ]]></institution>
<addr-line><![CDATA[Cali ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Clínica Imbanaco Grupo Quirón Salud ]]></institution>
<addr-line><![CDATA[Cali ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<volume>47</volume>
<numero>3</numero>
<fpage>1</fpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-24482022000300120&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-24482022000300120&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-24482022000300120&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract A thunderclap headache (TCH) is defined as an excruciating headache which occurs abruptly like "thunder," reaches its maximum point in less than a minute, and should be considered a medical emergency. Below, we present the clinical case of a 49-year-old Colombian patient who developed a thunderclap headache as the initial sign of pituitary apoplexy. He progressed satisfactorily, with no evidence of sequelae, highlighting the early diagnosis of a potentially fatal entity. (Acta Med Colomb 2022; 47. DOI:https://doi.org/10.36104/amc.2022.2336).]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La cefalea tipo trueno (CT) es considerada un dolor de cabeza intolerable, el cual se produce de forma abrupta como un "trueno", alcanza su punto máximo en menos de un minuto después de su aparición, y debe considerarse una emergencia médica. A continuación presentamos el caso clínico de un paciente colombiano, de 49 años quien presenta cefalea tipo trueno como manifestación inicial de apoplejía hipofisaria, con adecuada evolución y sin evidencia secuelar, resaltando el diagnóstico temprano en una entidad potencialmente mortal. (Acta Med Colomb 2022; 47. DOI:https://doi.org/10.36104/amc.2022.2336).]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[pituitary apoplexy]]></kwd>
<kwd lng="en"><![CDATA[thunderclap headache]]></kwd>
<kwd lng="en"><![CDATA[hypopituitarism]]></kwd>
<kwd lng="es"><![CDATA[apoplejía hipofisaria]]></kwd>
<kwd lng="es"><![CDATA[cefalea en trueno]]></kwd>
<kwd lng="es"><![CDATA[hipopituitarismo]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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