Sonographic diagnosis of biliary ascariasis.
Real-time sonographic imaging can clearly represent the biliary ascarid as a longitudinal double linear echo. We call this representation an intraductal tubular image. Such imaging allows easy differentiation of the biliary parasite from calcification and other foreign bodies in the biliary tracts.
D001196:Ascariasis / Q000175:diagnosis*; D003137:Common Bile Duct Diseases / Q000175:diagnosis* / Q000469:parasitology; D005260:Female; D006801:Humans; D008875:Middle Aged; D014463:Ultrasonography