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Related Experiment Videos

[Biliary ascariasis].

M Mensing, M A Cruz y Rivero, C Alarcon Hernandez

    Rontgen-Blatter; Zeitschrift Fur Rontgen-Technik Und Medizinisch-Wissenschaftliche Photographie
    |June 1, 1986
    PubMed
    Summary
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    Biliary ascariasis, a complication of intestinal ascariasis, presents distinct imaging signs like the "strip sign" and "bull's eye" on cholangiography and sonograms. Diagnosis can be challenging as the parasite may migrate back into the intestines, leading to negative follow-up scans.

    Area of Science:

    • Medical Imaging
    • Parasitology
    • Gastroenterology

    Context:

    • Biliary ascariasis is a recognized complication of intestinal ascariasis.
    • The condition affects the biliary duct system, leading to specific diagnostic challenges.

    Purpose:

    • To describe the characteristic imaging findings of biliary ascariasis.
    • To highlight the diagnostic signs on intravenous cholangiocholecystograms and sonograms.
    • To note the potential for parasite migration and negative follow-up examinations.

    Summary:

    • Biliary ascariasis manifests with specific signs on imaging, including the "strip sign", "spaghetti sign", and "inner tube sign" in longitudinal views.
    • Transverse views may show a "bull's eye in the triple O" pattern.
    • The helminth's ability to migrate out of the biliary system necessitates careful interpretation of serial imaging.

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    Impact:

    • Improved diagnostic accuracy for biliary ascariasis.
    • Enhanced understanding of the imaging spectrum of parasitic infections in the biliary tract.
    • Guidance for clinicians on interpreting imaging studies in endemic areas.