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      Gallstone ileus – a well-known, but rarely encountered cause for small bowel obstruction

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          Abstract

          Gallstone ileus is a well-known cause of small bowel obstruction in the radiological literature. In the experience of these authors, gallstone ileus occurs more often in quiz cases for registrars than in the everyday casework of a radiologist. The here presented case of a gallstone ileus provides a good opportunity to summarize cause, clinical presentation, radiological findings, and treatment options for both those studying for the specialist examinations and those whose specialist examinations are long past.

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          Most cited references5

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          Role of helical CT in diagnosis of gallstone ileus and related conditions.

          Small-bowel obstruction from gallstone impaction is a pathological entity frequently observed in elderly patients with a history of cholelithiasis or cholecystitis. Diagnostic imaging plays a great role in the management of patients with suspected gallstone ileus and overall in the correct predictive diagnosis: in the last years, some experiences in radiologic diagnosis of this entity by sonography, abdominal plain film and CT, and occasionally MRI have been reported. Some questions related to gallstone ileus are to be considered: one of them is the possibility of recurrence, which increases the operatory risk in these patients. Recurrence may be due either to the presence of overlooked stones that were already in the bowel at the time of surgery but not identified and not removed or to the migration of other stones in patients not previously cholcystectomized. In cases of acute abdomen, establishing an effective conservative therapy may be a critical point. The aim of this retrospective study was to evaluate the capabilities of helical single-detector and MDCT scanners to allow a correct diagnosis of this disease. Helical single-detector and MDCT may improve the diagnosis of gallstone ileus, providing important information regarding the exact number, size, and location of ectopic stones and the site of intestinal obstruction or direct visualization of a biliary-enteric fistula, to help clinicians in the therapeutic management of patients.
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            Gallstone ileus: a review

            Background Gallstone ileus is an important complication of cholecystolithiasis. In general, surgery is the treatment of choice for such cases, but clinicians face difficulty in the selection of an appropriate approach. Closure of a cholecystoenteric fistula can be achieved through one-stage or two-stage operation. Two-stage operation has a lower mortality rate than a one-stage procedure, but persistence of the cholecystoenteric fistula is associated with the risk of carcinogenesis and recurrence of gallstone ileus. Objective This study reviews the different surgical approaches according to the impaction site of the gallstone, using data of previous studies by our group and clinical reports in the literature. Conclusions First, for cases involving impaction at the duodenum, the cholecystoenteric fistula can be repaired in the same surgical field, and one-stage operation obtains favourable outcome; hence, one-stage operation is considered as treatment of choice. Second, for cases involving impaction at the small intestine, natural closure of the cholecystoenteric fistula or low mortality is expected; hence, two-stage operation may be performed, possibly using minimally invasive laparoscopy. Third, for cases involving impaction at the colon, natural closure of the cholecystocolonic fistula is unlikely, and patients have a high risk of reflux cholangitis due to faecal fluid; hence, one-stage operation is considered as treatment of choice.
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              Gallstone ileus: An overview of the literature.

              Gallstone ileus represents 4% of the causes of bowel obstruction in the general population, but increases to 25% in patients above the age of 65 years. Gallstone ileus does not present with unique symptoms, making diagnosis difficult. Its management is surgical, but there is no consensus as to which of the different surgical techniques is the procedure of choice. At present, there is no recent review of this pathology.
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                Author and article information

                Contributors
                Journal
                Radiol Case Rep
                Radiol Case Rep
                Radiology Case Reports
                Elsevier
                1930-0433
                06 December 2023
                February 2024
                06 December 2023
                : 19
                : 2
                : 791-793
                Affiliations
                [a ]Department of Diagnostic, Interventional and Pediatric Radiology, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 18, 3010, Bern, Switzerland
                [b ]Departement of Visceral Surgery and Medicine, Inselspital, Bern University Hospital, University of Bern, Freiburgstrasse 18, 3010, Bern, Switzerland
                Author notes
                Article
                S1930-0433(23)00862-2
                10.1016/j.radcr.2023.11.042
                10726328
                38111566
                4ec93689-f36b-4fc3-bf89-27324c12a514
                © 2023 The Authors. Published by Elsevier Inc. on behalf of University of Washington.

                This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

                History
                : 29 September 2023
                : 10 November 2023
                : 15 November 2023
                Categories
                Case Report

                gallstone ileus,small bowel obstruction,rigler triad

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