Clinical comparison between the presence and absence of protein plugs in pediatric choledochal cysts: experience in 390 patients over 30 years in a single center.

Approximately 36.4% of the pediatric CC patients were accompanied by protein plugs. Abdominal pain, pancreatitis, and APBDU were more commonly observed among those with protein plugs than among those without; long-term complications did not differ between them.