[Sonographic patterns of ascariasis and distomiasis in the biliary ducts (author's transl)]. / Aspect ultrasonore des ascaridioses et distomatoses des voies biliaries.

Concerning two cases of ascariasis and one case of distomiasis in the biliary ducts the authors describe the sonographic patterns leading to the ultrasonic diagnosis of those biliary parasites.--The "strip sign" characterizing ascaridiasis.--The "olympic ring gallbladder".