Type 1 Choledochal Cysts: Preoperative Evaluation by Ultrasound

: Type I choledochal cysts were diagnosed on ultrasonography in 14 patients. The cysts were seen as oval or fusiform anechoic structures located in the subhepatic space and separate from the gallbladder. The continuity of the cyst with the bile duct in the porta hepatis was a specific feature for correct diagnosis of the condition.