Series of cases and images reporting the various organs and systems infested with ascaris (ascariasis), demonstrating the rare parasite involvement of the biliary tract

Ascariasis is the most common parasitic infection in humans and is more common in developing tropical countries. The worm is usually seen in the small intestine, and cases involving the biliary tract are considered rare, and in these cases may be associated with serious complications. Imaging tests play an important role in detecting findings that demonstrate biliary tract infestation, often incidentally identified.