<?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>0120-9957</journal-id>
<journal-title><![CDATA[Revista colombiana de Gastroenterología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. colomb. Gastroenterol.]]></abbrev-journal-title>
<issn>0120-9957</issn>
<publisher>
<publisher-name><![CDATA[Asociación Colombiana de Gastroenterología  ]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-99572026000200259</article-id>
<article-id pub-id-type="doi">10.22516/25007440.1505</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Arcanobacterium haemolyticum as an Unusual Etiology of Hepatic Abscesses: A Case Report]]></article-title>
<article-title xml:lang="es"><![CDATA[Arcanobacterium haemolyticum como etiología inusual de abscesos hepáticos: reporte de caso]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera-Centeno]]></surname>
<given-names><![CDATA[María Paula]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-González]]></surname>
<given-names><![CDATA[Karol Valeria]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muñoz]]></surname>
<given-names><![CDATA[Óscar M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Pontificia Universidad Javeriana  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Pontificia Universidad Javeriana  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Pontificia Universidad Javeriana  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2026</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2026</year>
</pub-date>
<volume>41</volume>
<numero>2</numero>
<fpage>259</fpage>
<lpage>263</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-99572026000200259&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-99572026000200259&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-99572026000200259&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: Arcanobacterium haemolyticum is an infrequent Gram-positive, catalase-negative bacillus, typically associated with pharyngitis and mild cutaneous infections. Systemic infections caused by this microorganism are uncommon, and hepatic abscess formation is particularly rare.  Case report:  We present the case of a 30-year-old man with human immunodeficiency virus (HIV) infection on antiretroviral therapy who presented with diarrhea, fever, and abdominal pain. During hospitalization, jaundice, hepatomegaly, and cholestasis were observed. Magnetic resonance cholangiography revealed hepatic abscesses and portal thrombophlebitis. Blood cultures were positive for A. haemolyticum, with no additional isolates. Given the inability to perform drainage, antibiotic therapy was administered for six weeks, resulting in an adequate clinical response and progressive resolution of the lesions.  Conclusions: A. haemolyticum, typically considered a low-virulence pathogen, can cause severe invasive infections, including hepatic abscesses and pylephlebitis, and should be considered a potential etiologic agent in immunocompromised populations.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: Arcanobacterium haemolyticum es un bacilo grampositivo poco frecuente, catalasa negativa, generalmente asociado a faringitis y lesiones cutáneas leves. Las infecciones sistémicas ocasionadas por este microorganismo son inusuales, y es especialmente infrecuente la formación de abscesos hepáticos.  Caso clínico:  Se presenta el caso de un hombre de 30 años con infección por virus de la inmunodeficiencia humana (VIH) en tratamiento antirretroviral, quien consultó por diarrea, fiebre y dolor abdominal. Durante la hospitalización se evidenció ictericia, hepatomegalia y colestasis. La colangiorresonancia magnética reveló abscesos hepáticos y tromboflebitis portal. Los hemocultivos resultaron positivos para A. haemolyticum sin aislamientos adicionales. Ante la imposibilidad de realizar drenaje, se decidió hacer manejo antibiótico por seis semanas, con una adecuada respuesta clínica y resolución progresiva de las lesiones.  Conclusiones:  El A. haemolyticum, típicamente considerado un patógeno de baja virulencia, puede inducir infecciones invasivas graves, incluidos abscesos hepáticos y pioflebitis, por lo que debe considerarse como un potencial agente etiológico en poblaciones inmunocomprometidas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Arcanobacterium]]></kwd>
<kwd lng="en"><![CDATA[hepatic abscess]]></kwd>
<kwd lng="en"><![CDATA[venous thrombosis]]></kwd>
<kwd lng="en"><![CDATA[HIV infections]]></kwd>
<kwd lng="en"><![CDATA[sepsis]]></kwd>
<kwd lng="es"><![CDATA[Arcanobacterium]]></kwd>
<kwd lng="es"><![CDATA[absceso hepático]]></kwd>
<kwd lng="es"><![CDATA[trombosis venosa]]></kwd>
<kwd lng="es"><![CDATA[infecciones por VIH]]></kwd>
<kwd lng="es"><![CDATA[sepsis]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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