<?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>S0120-99572026000100119</article-id>
<article-id pub-id-type="doi">10.22516/25007440.1402</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Type Ib Choledochal Cyst Treated with Resection, Hepaticojejunostomy, and Subcutaneous Jejunal Loop]]></article-title>
<article-title xml:lang="es"><![CDATA[Quiste del colédoco Ib tratado con resección, hepatoyeyunostomía y asa subcutánea]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sierra-Duque]]></surname>
<given-names><![CDATA[Miguel Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sá-Ribeiro]]></surname>
<given-names><![CDATA[Flávio Antônio de]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mello-Moreira]]></surname>
<given-names><![CDATA[Fellipo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Carlos Chagas Institute of Health Sciences  ]]></institution>
<addr-line><![CDATA[Rio de Janeiro ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Carlos Chagas Institute of Health Sciences  ]]></institution>
<addr-line><![CDATA[Rio de Janeiro ]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2026</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2026</year>
</pub-date>
<volume>41</volume>
<numero>1</numero>
<fpage>119</fpage>
<lpage>124</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-99572026000100119&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-99572026000100119&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-99572026000100119&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: Choledochal cysts are congenital or acquired dilatations of the biliary tree, rare in adults, with a reported malignant transformation risk ranging from 3% to 11%. Standard treatment for type I cysts consists of complete cyst excision with biliodigestive reconstruction, most commonly via Roux-en-Y hepaticojejunostomy.  Case Presentation: A 36-year-old patient (G2P1C1), without comorbidities, presented with a six-month history of right upper quadrant pain. Endoscopic ultrasound revealed a type Ib choledochal cyst associated with cholelithiasis. Management was performed in two stages: first, laparoscopic cholecystectomy; forty-five days later, open cyst resection. Kocher and Cattell-Braasch maneuvers were employed to achieve adequate surgical exposure. Reconstruction was performed using a Roux-en-Y hepaticojejunostomy, incorporating a modified Praderi-type subcutaneous jejunal loop to facilitate future endoscopic access.  Discussion: Clinical manifestations of choledochal cysts in adults are typically nonspecific, often leading to delayed diagnosis. Nevertheless, the risk of malignant transformation justifies complete surgical excision5. The adopted surgical technique, including cyst resection and Roux-en-Y reconstruction, represents the preferred approach for type I cysts. The Kocher and Cattell-Braasch maneuvers were essential for distal cyst exposure. The subcutaneous jejunal loop provides durable and minimally invasive access for potential complications such as anastomotic stenosis.  Conclusion:  This case demonstrates the successful management of a type Ib choledochal cyst through complete resection and Roux-en-Y reconstruction with a subcutaneous jejunal loop, a technique that reduces procedural risks and improves long-term follow-up.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción:  Los quistes del colédoco son dilataciones congénitas o adquiridas del árbol biliar, infrecuentes en adultos, con un riesgo del 3% al 11% de transformación maligna. El tratamiento estándar para los quistes tipo I es la resección completa del quiste con reconstrucción del tránsito biliodigestivo, usualmente mediante una hepatoyeyunostomía en Y de Roux.  Presentación del caso:  Paciente de 36 años, G2P1C1, sin comorbilidades, con dolor en el hipocondrio derecho de 6 meses de evolución. La ecoendoscopia reveló un quiste del colédoco tipo Ib asociado a colelitiasis. El manejo se realizó en dos etapas: primero, colecistectomía laparoscópica; 45 días después, resección abierta del quiste. Se emplearon maniobras de Kocher y Cattell-Braasch para lograr exposición adecuada. La reconstrucción se realizó mediante una hepatoyeyunostomía en Y de Roux, con incorporación de un asa yeyunal subcutánea tipo Praderi modificada para facilitar futuros accesos endoscópicos.  Discusión:  La sintomatología de los quistes del colédoco en adultos suele ser inespecífica, lo que retrasa su diagnóstico. Sin embargo, el riesgo de malignización justifica la resección quirúrgica completa. La técnica quirúrgica adoptada, incluyendo resección del quiste y reconstrucción en Y de Roux, es el abordaje preferido para quistes tipo I. Las maniobras de Kocher y Cattell-Braasch fueron clave para exponer la porción distal del quiste. El asa subcutánea yeyunal brinda un acceso duradero y menos invasivo ante complicaciones como estenosis anastomótica.  Conclusión:  Este caso demuestra un abordaje exitoso de un quiste tipo Ib mediante resección completa y reconstrucción en Y de Roux con asa subcutánea. Esta técnica reduce riesgos y mejora el seguimiento.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Choledochal cyst]]></kwd>
<kwd lng="en"><![CDATA[Roux-en-Y anastomosis]]></kwd>
<kwd lng="en"><![CDATA[Jejunum]]></kwd>
<kwd lng="en"><![CDATA[laparoscopic cholecystectomy]]></kwd>
<kwd lng="es"><![CDATA[Quiste del colédoco]]></kwd>
<kwd lng="es"><![CDATA[anastomosis en Y de Roux]]></kwd>
<kwd lng="es"><![CDATA[yeyuno]]></kwd>
<kwd lng="es"><![CDATA[colecistectomía laparoscópica]]></kwd>
</kwd-group>
</article-meta>
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