A 78-year-old man exhibited repeated episodes of vomiting, diffuse abdominal pain and constipation for 10 days. One year previously, he had suffered from biliary colic but cholecystectomy was not performed because of high surgical risk. Physical examination showed a mass on the left side of the abdomen and increased bowel sounds. The blood count showed light leukocytosis and normal metabolic profile. An abdominal radiography showed Rigler's triad (Fig. 1, Image A): pneumobilia (yellow arrow), small-bowel dilatation, and two ectopic gallstones in the sigmoid colon (red arrows). Computerized tomography confirmed the presence of intra and extrahepatic pneumobilia (Fig. 1, Image B), as consequence of cholecysto-colonic fistula secondary to cholelitiasis. Gallstone ileus is a rare complication of gallstone disease, and in less than 4% of cases the gallstone is located in the sigmoid colon. The diagnosis is not always straightforward and usually depends on radiographic findings, although the classic Rigler¿s triad is described in fewer than half of patients1-3. A laparotomy was performed and a right hemicolectomy was necessary because of colonic perforation. The patient underwent successful surgery and no post-operative complications ensued.
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One year previously, he had suffered from biliary colic but cholecystectomy was not performed because of high surgical risk. Physical examination showed a mass on the left side of the abdomen and increased bowel sounds. The blood count showed light leukocytosis and normal metabolic profile. An abdominal radiography showed Rigler's triad (<a class="elsevierStyleCrossRef" href="#fig0005">Fig. 1</a>, Image A): pneumobilia (yellow arrow), small-bowel dilatation, and two ectopic gallstones in the sigmoid colon (red arrows). Computerized tomography confirmed the presence of intra and extrahepatic pneumobilia (<a class="elsevierStyleCrossRef" href="#fig0005">Fig. 1</a>, Image B), as consequence of cholecysto-colonic fistula secondary to cholelitiasis. Gallstone ileus is a rare complication of gallstone disease, and in less than 4% of cases the gallstone is located in the sigmoid colon. The diagnosis is not always straightforward and usually depends on radiographic findings, although the classic Rigler¿s triad is described in fewer than half of patients<a class="elsevierStyleCrossRefs" href="#bib0020"><span class="elsevierStyleSup">1-3</span></a>. A laparotomy was performed and a right hemicolectomy was necessary because of colonic perforation. The patient underwent successful surgery and no post-operative complications ensued.</p><elsevierMultimedia ident="fig0005"></elsevierMultimedia></span>" "pdfFichero" => "main.pdf" "tienePdf" => true "multimedia" => array:1 [ 0 => array:6 [ "identificador" => "fig0005" "etiqueta" => "Figure 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 812 "Ancho" => 1300 "Tamanyo" => 122168 ] ] ] ] "bibliografia" => array:2 [ "titulo" => "References" "seccion" => array:1 [ 0 => array:2 [ "identificador" => "bibs0015" "bibliografiaReferencia" => array:3 [ 0 => array:3 [ "identificador" => "bib0020" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Gallstone ileus: a review of 1001 reported cases" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:2 [ 0 => "R.M. Reisner" 1 => "J.R. 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Mazzeo" ] ] ] ] ] "host" => array:1 [ 0 => array:2 [ "doi" => "10.1016/j.ejrad.2003.11.011" "Revista" => array:6 [ "tituloSerie" => "Eur J Radiol" "fecha" => "2004" "volumen" => "50" "paginaInicial" => "23" "paginaFinal" => "29" "link" => array:1 [ 0 => array:2 [ "url" => "https://www.ncbi.nlm.nih.gov/pubmed/15093232" "web" => "Medline" ] ] ] ] ] ] ] ] 2 => array:3 [ "identificador" => "bib0030" "etiqueta" => "3" "referencia" => array:1 [ 0 => array:2 [ "contribucion" => array:1 [ 0 => array:2 [ "titulo" => "Gallstone obstruction: pathogenesis roentgen manifestations" "autores" => array:1 [ 0 => array:2 [ "etal" => false "autores" => array:3 [ 0 => "L.G. Rigler" 1 => "C.N. Borman" 2 => "J.F. Noble" ] ] ] ] ] "host" => array:1 [ 0 => array:1 [ "Revista" => array:5 [ "tituloSerie" => "JAMA" "fecha" => "1941" "volumen" => "117" "paginaInicial" => "1753" "paginaFinal" => "1759" ] ] ] ] ] ] ] ] ] ] ] "idiomaDefecto" => "en" "url" => "/02105705/0000004100000008/v1_201810020616/S021057051830133X/v1_201810020616/en/main.assets" "Apartado" => array:4 [ "identificador" => "75365" "tipo" => "SECCION" "es" => array:2 [ "titulo" => "Imágenes del mes" "idiomaDefecto" => true ] "idiomaDefecto" => "es" ] "PDF" => "https://static.elsevier.es/multimedia/02105705/0000004100000008/v1_201810020616/S021057051830133X/v1_201810020616/en/main.pdf?idApp=UINPBA00004N&text.app=https://www.elsevier.es/" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S021057051830133X?idApp=UINPBA00004N" ]