[Agenesis of the gallbladder]

The authors report a case of agenesis of gallbladder associated with lithiasis of common bile duct. A review of the literature confirms the rarity of this congenital malformation. In 40-60% of cases it is associated with other gastrointestinal, skeletal, cardiovascular and genitourinary malformations. In 20-50% of cases it can be associated with common bile duct stones. Patients are asymptomatic in the majority of cases. A preoperative diagnosis is difficult despite of high accuracy of the modern diagnostic imaging techniques.