From: Validity of MDCT cholangiography in differentiating benign and malignant biliary obstruction
MDCT Cholangiography findings | Malignant causes | Benign causes | Test± | p value (Sig.) | ||
---|---|---|---|---|---|---|
(N=41) | (N=28) | |||||
No. | % | No. | % | |||
Mass | ||||||
 Absent | 4 | 9.6% | 26 | 92.8% | 57.424 | <0.001 (HS) |
 Present | 37 | 90.3% | 2 | 7.2% | ||
Calcification | ||||||
 Absent | 40 | 97.4% | 22 | 78.6% | 5.238 | 0.040 (S) |
 Present | 1 | 2.6% | 6 | 21.4% | ||
Biliary dilatation | ||||||
 Mild | 20 | 48.8% | 20 | 71.4% | 2.942 | 0.230 (NS) |
 Moderate | 17 | 41.5% | 6 | 21.4% | ||
 Severe | 4 | 9.7% | 2 | 7.1% | ||
Level of obstruction | ||||||
 Intrahepatic | 10 | 24.4% | 2 | 7.2% | 5.171 | 0.075 (NS) |
 Hilar | 9 | 21.9% | 5 | 17.9% | ||
 Distal | 22 | 53.7% | 21 | 75% |