Cholangiographic characteristics of common bile duct dilatation in children

Table 1 Etiological classification of common bile duct dilatation in children

Causes	n = 85	Descriptions
Congenital CBDD	n = 55 (64.7%)
Choledochal cyst	n = 55	Type I (n = 26)
		Type IVa (n = 29)
Obstructive CBDD	n = 30 (35.3%)
Choledolithiasis	n = 23	Idiopathic (n = 10)
		Chronic pancreatitis (n = 6)
		Leukemia (n = 2)
		G6PD deficiency (n = 2)
		Spherocytosis (n = 2)
		Trauma (n = 1)
Miscellaneous	n = 7	Chronic pancreatitis (n = 3)
		Lymphoma/pancreatic cancer (n = 3)
		Trauma (n = 1)

CBDD: Common bile duct dilatation.

Table 2 Clinicocholangiographic characteristics of children with common bile duct dilatation n (%)

Characteristics total (n = 85)	Congenital CBDD (n = 55)	Obstructive CBDD (n = 30)	Univariate P value	Multivariate P value
Clinical
Age, mean ± SD (mo)	63.8 ± 36.4	82.4 ± 46.0	NS
Sex, M:F	11:44	22:8	0.042
Abdominal pain	50 (91.0)	24 (80.0)	NS
Jaundice	23 (41.8)	13 (43.3)	NS
Abdominal mass	2 (3.6)	0 (0)	NS
Vomiting	11 (20.0)	4 (13.3)	NS
Cholangitis	5 (9.0)	1 (3.3)	NS
Pancreatitis	23 (43.6)	9 (30.0)	NS
Cholangiographic
CBD diameter	19.3 ± 9.6	12.2 ± 4.1	NS
Severity index ≥ 2.32	34 (61.8)	1 (3.3)	0.012	0.024
Cystic features	14 (21.8)	2 (6.7)	NS
Cylindrical-fusiform feature	43 (78.2)	28 (93.3)	NS
APBDU	39 (70.9)	0 (0)	0.005	0.001
Choledolithiasis	34 (61.8)	23 (76.6)	NS
Cholelithiasis	3 (5.5)	7 (23.3)	NS
Pancreatic duct dilatation	5 (9)	2 (6.7)	NS

APBDU: Anomalous union of pancreaticobiliary duct; CBD: Common bile duct; CBDD: Common bile duct dilatation; NS: Not significant.