Abstract
Biliary system is that part of the digestive tract which can be affected by variety of disorders, considering the most common one is gallstones that medically termed as Cholilithiasis. In pediatrics, cholilithiasis commonly associated with predisposing conditions, such as history of: total parenteral nutrition (TPN), blood type incompatibility, neonatal phototherapy, hemolysis, dehydration, or sepsis.