{"title":"A single worm-like structure in a urine collection bag: a case report.","authors":"Frédéric Bloch","doi":"10.1186/s13256-025-05248-5","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>The presence of a foreign body resembling a worm in a urine collection bag should lead to etiological investigation, as it may not be a parasite. It is thus important to consider the context and origin of the patient, together with the size, length, appearance, and characteristics of the suspected worm.</p><p><strong>Case presentation: </strong>The presence of an apparently mobile black filament resembling a worm was reported in the urine collection bag of a 77-year-old African male resident of our long-term care facility. We initially suspected a parasitic infection. The description of this foreign body suggested Dioctophyma renale (giant kidney worm); however, the analysis of the sample concluded that it was a blood clot. Its worm-like appearance was due to the tube-like nature of the urethra, causing the blood clot to be squeezed into a worm-like shape.</p><p><strong>Conclusion: </strong>Such presentations can be misleading and may lead to unnecessary concern and investigations. A parasitological analysis can be essential for precise diagnosis.</p>","PeriodicalId":16236,"journal":{"name":"Journal of Medical Case Reports","volume":"19 1","pages":"201"},"PeriodicalIF":0.9000,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12046820/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Medical Case Reports","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1186/s13256-025-05248-5","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MEDICINE, GENERAL & INTERNAL","Score":null,"Total":0}
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Abstract
Background: The presence of a foreign body resembling a worm in a urine collection bag should lead to etiological investigation, as it may not be a parasite. It is thus important to consider the context and origin of the patient, together with the size, length, appearance, and characteristics of the suspected worm.
Case presentation: The presence of an apparently mobile black filament resembling a worm was reported in the urine collection bag of a 77-year-old African male resident of our long-term care facility. We initially suspected a parasitic infection. The description of this foreign body suggested Dioctophyma renale (giant kidney worm); however, the analysis of the sample concluded that it was a blood clot. Its worm-like appearance was due to the tube-like nature of the urethra, causing the blood clot to be squeezed into a worm-like shape.
Conclusion: Such presentations can be misleading and may lead to unnecessary concern and investigations. A parasitological analysis can be essential for precise diagnosis.
期刊介绍：
JMCR is an open access, peer-reviewed online journal that will consider any original case report that expands the field of general medical knowledge. Reports should show one of the following: 1. Unreported or unusual side effects or adverse interactions involving medications 2. Unexpected or unusual presentations of a disease 3. New associations or variations in disease processes 4. Presentations, diagnoses and/or management of new and emerging diseases 5. An unexpected association between diseases or symptoms 6. An unexpected event in the course of observing or treating a patient 7. Findings that shed new light on the possible pathogenesis of a disease or an adverse effect
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