<?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>S0120-99572025000100088</article-id>
<article-id pub-id-type="doi">10.22516/25007440.1194</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Incidental Finding of a Neuroendocrine Tumor in the Distal Ileum: A Case Report]]></article-title>
<article-title xml:lang="es"><![CDATA[Hallazgo incidental de un tumor neuroendocrino en el íleon distal: reporte de caso]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Viera-Oliveros]]></surname>
<given-names><![CDATA[Arturo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Del Risco]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Suárez-Parejo]]></surname>
<given-names><![CDATA[César]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Cartagena  ]]></institution>
<addr-line><![CDATA[Cartagena ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Cartagena  ]]></institution>
<addr-line><![CDATA[Cartagena ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Gastromag Unit  ]]></institution>
<addr-line><![CDATA[Santa Marta ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2025</year>
</pub-date>
<volume>40</volume>
<numero>1</numero>
<fpage>88</fpage>
<lpage>94</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-99572025000100088&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-99572025000100088&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-99572025000100088&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction:  Neuroendocrine neoplasms (NENs) are rare, with an estimated annual incidence of 1.05 cases per 100,000 people. Over the past 30 years, their incidence has been on the rise, though the exact causes remain unclear.  Case Presentation: We report the case of a 56-year-old female patient with a history of treatment-resistant hypertension since 2022. She was referred to gastroenterology due to diffuse, colicky abdominal pain, accompanied by bloating and two loose bowel movements per day for the past two years. A colonoscopy with ileal intubation revealed a 15 mm sessile polypoid lesion in the distal ileum, located 5 cm from the ileocecal valve. An octreotide scan identified an intraluminal lesion in the distal ileum with somatostatin receptor overexpression, as well as an enlarged right ileocolic lymph node. The patient underwent laparoscopic surgery, which included a right hemicolectomy, distal ileum resection, and retroperitoneal lymphadenectomy. The final histopathological diagnosis confirmed a grade 2 ileal neuroendocrine tumor measuring 1.5 x 1 cm, extending into the muscularis propria without lymphovascular or perineural invasion. Surgical margins were tumor-free. To date, the patient has not required adjuvant therapy during follow-up.  Conclusion: This case highlights the importance of routine colonoscopy with ileal intubation, as it can facilitate the early detection of distal ileal neuroendocrine tumors, allowing for timely treatment and improved patient prognosis.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción:  Las neoplasias neuroendocrinas (NEN) son poco frecuentes, con una incidencia anual estimada en 1,05 casos por 100.000 habitantes y un aumento en su incidencia en los últimos 30 años. No se conocen con exactitud las causas que producen la aparición de estas neoplasias.  Presentación del caso:  Ae trata de una paciente femenina de 56 años, con antecedentes de hipertensión arterial de difícil manejo desde 2022. Fue remitida a gastroenterología por dolor abdominal tipo cólico difuso asociado a distensión y dos deposiciones blandas al día durante dos años de evolución. Una colonoscopia con intubación ileal mostró una lesión sobreelevada polipoide sésil de 15 mm en el íleon distal a 5 cm de la válvula ileocecal. Una gammagrafía con octreotida mostró la lesión endoluminal del íleon distal con sobreexpresión de receptores de somatostatina y una adenopatía ileocólica derecha. A la paciente se le realizó una cirugía laparoscópica en la que se le practicó una hemicolectomía derecha además de una resección del íleon distal y linfadenectomía retroperitoneal. El diagnóstico histopatológico final fue de un tumor neuroendocrino ileal de grado 2 de 1,5 x 1 cm de diámetro con extensión hasta la muscular propia sin invasión linfovascular ni perineural con márgenes de la resección libres de tumor. La paciente no ha requerido tratamiento de adyuvancia en el seguimiento hasta la fecha.  Conclusión: El presente caso clínico ilustra la importancia de realizar la colonoscopia de rutina con intubación ileal ya que puede permitir un diagnóstico temprano de los tumores neuroendocrinos del íleon distal y permitir así un tratamiento oportuno con un mejor pronóstico de los pacientes.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Carcinoid tumor]]></kwd>
<kwd lng="en"><![CDATA[small intestine]]></kwd>
<kwd lng="en"><![CDATA[colonoscopy]]></kwd>
<kwd lng="es"><![CDATA[Tumor carcinoide]]></kwd>
<kwd lng="es"><![CDATA[intestino delgado]]></kwd>
<kwd lng="es"><![CDATA[colonoscopia]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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