Clinical significance of main pancreatic duct dilation on computed tomography: Single and double duct dilation

Table 1 Diagnoses in 77 patients with pancreatic duct dilation on CT

Diseases	n	%
Chronic pancreatitis	40	52
Pancreatic carcinoma	17	22
Idiopathic dilation	10	13
IPMT	2	3
Cholangiocarcinoma	2	3
Acute cholecystitis	2	3
CBD + PD stone	1	1
CBD stone	1	1
Pancreatic sarcoma	1	1
Cirrhosis	1	1
Total	77	100

IPMT: Intraductal papillary mucinous tumors; PD: pancreatic duct; CBD: common bile duct.

Table 2 Diagnoses in 51 patients with pancreatic single duct dilation

Diseases	n	%
Chronic pancreatitis	37	73
Idiopathic dilation	8	15
Pancreatic carcinoma	2	4
IPMT	2	4
Pancreatic sarcoma	1	2
Acute cholecystitis	1	2
Total	51	100

Table 3 Diagnoses in 26 patients with pancreatic double duct dilation

Diseases	n	%
Pancreatic carcinoma	15	58
Chronic pancreatitis	3	12
Cholangiocarcinoma	2	8
Idiopathic dilation	2	8
CBD+PD stone	1	4
CBD stone	1	4
Cirrhosis	1	4
Acute cholecystitis	1	4
Total	26	100

Table 4 Comparison of single duct dilation and double duct dilation

	SDD	DDD	P
Number	51	26
Age (mean yr)	55	65	> 0.05
Diagnosis: n (%)
Benign	46 (90)	9 (35)	< 0.05
Malignant	5 (10)	17 (65)	< 0.05

SDD: Single duct dilation; DDD: Double duct dilation.