CT finding

Proven appendicitis (N = 120)

Control group (N = 100)

P-value

Hyperdense appendix

5 (4.1%)

0 (0%)

0.039

Dilated appendix

90 (75%)

3 (3%)

0.0001

Thickened wall

101 (84.2%)

3 (3%)

0.0001

Fat stranding

96 (80%)

3 (3%)

0.0001

Fluid collection

24 (20%)

2 (2%)

0.00004

Mesenteric LNs

20 (16.7%)

4 (4%)

0.0027

Appendicolith

30 (25%)

3 (3%)

0.000005

Wall enhancement

98 (81.7%)

Periappendicular abscess

8 (6.7%)