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Figure 8b.   Choledochal cyst (type IA) in a 6-year-old girl with jaundice and clinical evidence of pancreatitis. (a) Transverse sonogram shows a minimally enlarged pancreas (P) and a 4-cm anechoic cyst (C) in the region of the pancreatic head. (b) Transverse sonogram of the liver demonstrates dilated intrahepatic ducts (arrows) and coarse liver echotexture thought to be due to cholestasis. (c) Color Doppler image helps confirm the absence of flow in the dilated common hepatic duct, which communicates with the choledochal cyst. This finding was confirmed with duplex Doppler US.