Ultrasonic diagnosis of choledochal cyst in pregnancy.

Two patients are reported with obstructive jaundice in pregnancy. In one of these ultrasonic scanning confirmed a diagnosis of choledochal cyst, and in the other made this diagnosis. Ultrasonic scanning is suggested as the preliminary radiological examination for obstructive jaundice in pregnancy. Any patient with a clinical diagnosis of choledochal cysts should have an ultrasonic scan.