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Updated: Aug 18, 2026

Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
Sonographic diagnosis of biliary ascariasis
1Paediatric Hospital, University of Erlangen-Nürnberg, Federal Republic of Germany.
Abstract:
In an 11.5-year-old boy with obstructive jaundice sonography revealed a worm-like structure within the dilated biliary tree. Cross-section showed a bull's eye configuration, whereas longitudinal planes demonstrated an echogenic strip with a central longitudinal anechogenic tube. Diagnosis of ascariasis was established by identification of ascarid eggs in the stool. After anthelminthic treatment several ascarid worms were excreted with the stool.
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