Obstructive biliary ascariasis with cholangitis and hepatic abscesses in Laos: a case report with gall bladder ultrasound video.

A 12-year-old Lao boy with obstructive biliary Ascaris infection is described and video of the gallbladder ultrasound presented. The patient developed severe complications of obstructive cholangitis, a large right pleural effusion and hepatic abscesses requiring prolonged antibiotic therapy. The differential diagnosis of worms in the gall-bladder is discussed.