Skip to main content

Table 3 CT characteristics

From: Predictive ability of CT findings in the differentiation of complicated and uncomplicated appendicitis: a retrospective investigation of 201 patients undergone appendectomy at initial admission

CT findings All patients (n = 201) Uncomplicated appendicitis (n = 106) Complicated appendicitis (n = 95) p value
Appendiceal diameter (mm) 12.0 ± 2.7 11.1 ± 2.3 13.1 ± 2.8 < 0.001
Tip appendiceal diameter (n = 186) (mm) 10.5 ± 2.7 9.8 ± 2.3 11.4 ± 3.0 < 0.001
Mucosal hyperenhancement 91 (45.3) 45 (42.5) 46 (48.4) 0.396
Mucosal enhancement defect 101 (50.2) 22 (20.8) 79 (83.2) < 0.001
Intraluminal appendicolith 74 (36.8) 24 (22.6) 50 (52.6) < 0.001
Appendicolith causing obstruction 57 (28.6) 18 (17.1) 39 (41.5) < 0.001
Fat stranding     < 0.001
 None 5 (2.5) 4 (3.8) 1 (1.1)  
 Mild 43 (21.4) 41 (38.7) 2 (2.1)  
 Moderate–severe 153 (76.1) 61 (57.5) 92 (96.8)  
Phlegmon 11 (5.5) 1 (0.9) 10 (10.5) 0.003
Fluid collection 24 (11.9) 1 (0.9) 23 (24.2) < 0.001
Size (mm) 34.7 ± 14.9 21.4 ± 3.7 35.8 ± 14.9 0.193
Extraluminal appendicolith 6 (3.0) 0 (0.0) 6 (6.3) 0.010
Periappendiceal air 41 (20.4) 0 (0.0) 41 (43.2) < 0.001
Periappendiceal fluid 103 (51.2) 30 (28.3) 73 (76.8) < 0.001
Ascites 60 (29.9) 16 (15.1) 44 (46.3) < 0.001
Small bowel dilatation 17 (8.5) 2 (1.9) 15 (15.8) < 0.001
Diameter (cm) 3.5 ± 0.4 3.4 ± 0.4 3.5 ± 0.5 0.508
Small bowel thickening 60 (29.9) 13 (12.3) 47 (49.5) < 0.001
  1. Those in brackets represent percentage unless specified otherwise