<?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>S0026-17422025000500030</article-id>
<article-id pub-id-type="doi">10.22201/fm.24484865e.2025.68.5.04</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Oclusión intestinal asociada a un anillo apendicular resuelta por laparoscopia]]></article-title>
<article-title xml:lang="en"><![CDATA[Intestinal Occlusion Associated with an Appendicular Ring Resolved by Laparoscopy]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salinas-García]]></surname>
<given-names><![CDATA[Daniela Grece]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gallardo-Navarro]]></surname>
<given-names><![CDATA[Elías]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carrera Muiños]]></surname>
<given-names><![CDATA[Aurelio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Colín Carrasco]]></surname>
<given-names><![CDATA[Josemaría]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital Español  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Hospital Español  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Hospital Español  ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2025</year>
</pub-date>
<volume>68</volume>
<numero>5</numero>
<fpage>30</fpage>
<lpage>35</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0026-17422025000500030&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0026-17422025000500030&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0026-17422025000500030&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: Se reporta un caso de una patología poco usual, en la cual el diagnóstico quirúrgico y la tomografía computarizada abdominal orientaron el diagnóstico de oclusión intestinal, cuya etiología resultó ser un anillo apendicular.  Caso clínico: Mujer de 73 años que acudió a urgencias por dolor abdominal y náusea hasta llegar al vómito, sin datos de irritación peritoneal ni signos apendiculares. Se solicitó tomografía computarizada que informó imagen a nivel mesogástrico en remolino sugestiva de hernia interna y distensión de asas intestinales.  Discusión: Se realizó laparoscopia diagnóstica y se observó anillo apendicular en íleon terminal, con apéndice cecal aumentado de tamaño. Se efectuó apendicectomía y se corroboró la adecuada vascularización del asa intestinal con verde de indocianina.  Conclusión: Esta rara patología es un reto quirúrgico, por lo que debe considerarse como diagnóstico diferencial cuando se descarten los casos más frecuentes de oclusión, como adherencias, hernias o tumores.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: We report a case of intestinal occlusion secondary to an appendicular ring, a very rare pathology. The diagnosis was made surgically, guided by abdominal computed tomography, which suggested intestinal occlusion without specifying the etiology.  Case report: A 73-year-old woman presented to the emergency department with abdominal pain and nausea up to vomiting, without peritoneal irritation or appendicular signs. Computed tomography revealed a swirl image at the mesogastric level, suggestive of internal hernia and intestinal loop distension.  Discussion: Diagnostic laparoscopy revealed an appendicular ring in the terminal ileum, along with an enlarged cecal appendix. An appendectomy was performed, and indocyanine green confirmed adequate vascularization of the affected intestinal loop.  Conclusion: This rare pathology is a surgical challenge and should be considered as a differential diagnosis once the most frequent causes of occlusion, such as adhesions, hernias, or tumors, are ruled out.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Apéndice cecal]]></kwd>
<kwd lng="es"><![CDATA[anillo apendicular]]></kwd>
<kwd lng="es"><![CDATA[obstrucción mecánica del intestino delgado]]></kwd>
<kwd lng="es"><![CDATA[dolor abdominal]]></kwd>
<kwd lng="es"><![CDATA[apendicitis]]></kwd>
<kwd lng="en"><![CDATA[Cecal appendix]]></kwd>
<kwd lng="en"><![CDATA[appendicular ring]]></kwd>
<kwd lng="en"><![CDATA[mechanical small bowel obstruction]]></kwd>
<kwd lng="en"><![CDATA[abdominal pain]]></kwd>
<kwd lng="en"><![CDATA[appendicitis]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Touseef Arajmand]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Hassan]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Appendiceal tourniquet, an extremely rare condition with an equally rare presentation: a case report and an integrative review]]></article-title>
<source><![CDATA[J Emerg Med Trauma Acute Care]]></source>
<year>2022</year>
<volume>2022</volume>
<numero>4</numero>
<issue>4</issue>
</nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jha]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Bhatta]]></surname>
<given-names><![CDATA[BR]]></given-names>
</name>
<name>
<surname><![CDATA[Shrestha]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Shrestha]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Dahal]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Maharjan]]></surname>
<given-names><![CDATA[SS.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Appendicular band syndrome leading to small bowel obstruction: a case report of a rare complication of acute appendicitis]]></article-title>
<source><![CDATA[Int J Surg Case Rep]]></source>
<year>2025</year>
<page-range>111452</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Curado Soriano]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[López Ruiz]]></surname>
<given-names><![CDATA[JA]]></given-names>
</name>
<name>
<surname><![CDATA[Martín Pérez]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Reyes Díaz]]></surname>
<given-names><![CDATA[ML]]></given-names>
</name>
<name>
<surname><![CDATA[Oliva Mompeán]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Anillo constrictor apendicular: una rara causa de oclusión intestinal]]></article-title>
<source><![CDATA[Cir Esp]]></source>
<year>2013</year>
<volume>91</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>60-1</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Greenseid]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Moody]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Quan]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Concurrent presentation of unrelated perforated appendicitis and high-grade small bowel obstruction: a case report]]></article-title>
<source><![CDATA[J Case Rep Images Surg]]></source>
<year>2024</year>
<volume>10</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>10-3</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ali]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Gupta]]></surname>
<given-names><![CDATA[MK]]></given-names>
</name>
<name>
<surname><![CDATA[Agarwal]]></surname>
<given-names><![CDATA[BB]]></given-names>
</name>
<name>
<surname><![CDATA[Sarangi]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Gupta]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Inflamed appendicular tourniquet causing mechanical ileal obstruction]]></article-title>
<source><![CDATA[Curr Med Res Pract]]></source>
<year>2013</year>
<volume>3</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>93-6</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ahmed]]></surname>
<given-names><![CDATA[KA]]></given-names>
</name>
<name>
<surname><![CDATA[Hamdy]]></surname>
<given-names><![CDATA[AMF]]></given-names>
</name>
<name>
<surname><![CDATA[Seifeldin]]></surname>
<given-names><![CDATA[MI]]></given-names>
</name>
<name>
<surname><![CDATA[Elkeleny]]></surname>
<given-names><![CDATA[MR.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mechanical small bowel obstruction due to appendiceal tourniquet: a case report and review of literature]]></article-title>
<source><![CDATA[J Med Case Rep]]></source>
<year>2019</year>
<volume>13</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-5</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Beltrán]]></surname>
<given-names><![CDATA[MA.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Intestinal obstruction in appendicitis: a retrospective cohort study]]></article-title>
<source><![CDATA[Hellenic J Surg]]></source>
<year>2017</year>
<volume>89</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>92-9</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Habib]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Zaib]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Afzal]]></surname>
<given-names><![CDATA[MW]]></given-names>
</name>
<name>
<surname><![CDATA[Habib]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Habib]]></surname>
<given-names><![CDATA[MW]]></given-names>
</name>
<name>
<surname><![CDATA[Afridi]]></surname>
<given-names><![CDATA[MNS.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Appendiceal tie syndrome: a rare cause of small bowel obstruction]]></article-title>
<source><![CDATA[J Ayub Med Coll Abbottabad]]></source>
<year>2023</year>
<volume>35</volume>
<numero>4</numero>
<issue>4</issue>
</nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hong Duc]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Minh Xuan]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Huu Thuyet]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Quang Huy]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Intestinal obstruction due to acute appendicitis]]></article-title>
<source><![CDATA[Case Rep Gastroenterol]]></source>
<year>2020</year>
<volume>14</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>346-53</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Abule]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Chebo]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
<name>
<surname><![CDATA[Billoro]]></surname>
<given-names><![CDATA[BB.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Appendico-ileal knotting causing small bowel obstruction: a case report]]></article-title>
<source><![CDATA[Clin Case Rep]]></source>
<year>2022</year>
<volume>10</volume>
<numero>5</numero>
<issue>5</issue>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
