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Table 4 Comparison between the two studied groups according to the biliary dilatation

From: The role of combined diffusion weighted imaging and magnetic resonance cholangiopancreatography in the differential diagnosis of obstructive biliary disorders

Biliary dilatation Total (n=60) Benign (n=34) Malignant (n=26) Test of sig. P
No. % No. % No. %
Intrahepatic biliary dilatation 15 25.0 7 20.6 8 30.8   
Intrahepatic duct diameter (mm)
 Min.–Max. 4.0–15.0 4.0–15.0 6.0–13.0 U=16.0 0.189
 Mean ± SD. 8.80 ± 2.98 8.0 ± 3.56 9.50 ± 2.39
 Median (IQR) 8.0 (7.0–10.50) 7.0 (6.50–8.50) 9.0(8.0–11.50)
Intra + extra 45 75.0 27 79.4 18 69.2   
CBD diameter (mm)
 Min.–Max. 6.0–22.0 6.0–18.0 12.0–22.0 t=4.280* < 0.001*
 Mean ± SD. 14.40 ± 3.93 12.67 ± 3.34 17.0 ± 3.31
 Median (IQR) 14.0 (12.0–16.0) 13.0(9.50–16.0) 17.0(14.0–20.0)