Choledochal cyst with or without biliary atresia in neonates and young infants: US differentiation.

Abstract

US can be helpful in the preoperative differential diagnosis of choledochal cysts in neonates and infants. Cysts are larger, intrahepatic ducts are dilated, and gallbladders are not atretic in patients with CC as compared with those in patients with CCBA.

Dilatation of the biliary tree in children: sonographic diagnosis and its clinical significance.

“…Kim and associates reported that a choledochal cyst is larger than a CCBA. 24 In this study of infantile extrahepatic biliary tree dilatation, we also found that choledochal cysts had a significantly greater diameter than BDBA. Because there was a high prevalence of BDBA (44%) in infantile biliary tract dilatation in this study, we strongly believe that an operative cholangiogram is indicated for infantile biliary duct dilatation.…”

“…In the same period, we had 187 cases of BA cases, 10.6% with BDBA (19 of 187). BDBA has been reported in the literature under different medical terms, such as choledochal cyst associated with BA, 22 choledochal cyst associated with extrahepatic biliary BA (CCBA), 24 and type I cyst of BA. 25 In the literature, the most common type of BDBA reported is type I cyst, which has been described as a correctable type of BA in the past.…”

“…25 In the literature, the most common type of BDBA reported is type I cyst, which has been described as a correctable type of BA in the past. [22][23][24][25][26] However, some other types of BDBA have been reported. Bancroft and coworkers reported four type I cysts and one choledochal cyst contiguous with the cystic duct.…”

Sonogram of Biliary Dilatation in Children

“…BABC had been reported and had names synonymously as biliary duct dilatation with biliary atresia (BDBA), 13 choledochal cyst associated with extrahepatic biliary atresia (CCBA), 18 and type I cyst of BA.19 A survey by the American Academy of Pediatric Surgery Section found that 13% of patients with cystic dilatation of the CBD had extrahepatic biliary atresia.…”

Management Dilemmas With Choledochal Cysts

“…Foremost among the differential diagnoses of dilatation of the common bile duct in children is biliary atresia. 40,[55][56][57] In adults, the diagnosis is only sporadically in doubt preoperatively, owing to the quality of modern imaging. Stone impaction with proximal dilatation has been reported to mimic choledochal cysts.…”