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Table 3 Comparison between benign and malignant causes as regards MDCT cholangiography findings

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%