Table 3 CT features in simple and non-simple appendicitis.
Simple Appendicitis | non-Simple Appendicitis | Overall | P value | |
|---|---|---|---|---|
(N = 76) | (N = 258) | (N = 334) | ||
Perforation | ||||
Absent | 74 (97.4%) | 238 (92.2%) | 312 (93.4%) | 0.286 |
Present | 2 (2.6%) | 20 (7.8%) | 22 (6.6%) | |
Abscess | ||||
Absent | 74 (97.4%) | 254 (98.4%) | 328 (98.2%) | 0.823 |
Present | 2 (2.6%) | 4 (1.6%) | 6 (1.8%) | |
Peritonitis | ||||
Absent | 67 (88.2%) | 201 (77.9%) | 268 (80.2%) | 0.143 |
Present | 9 (11.8%) | 57 (22.1%) | 66 (19.8%) | |
Appendix Wall Thickening | ||||
Absent | 31 (40.8%) | 80 (31.0%) | 111 (33.2%) | 0.282 |
Present | 45 (59.2%) | 178 (69.0%) | 223 (66.8%) | |
Fecal Retention | ||||
Absent | 53 (69.7%) | 140 (54.3%) | 193 (57.8%) | 0.0561 |
Present | 23 (30.3%) | 118 (45.7%) | 141 (42.2%) | |
Thickening of Cecum | ||||
Absent | 56 (73.7%) | 92 (35.7%) | 148 (44.3%) | < 0.001 |
Present | 20 (26.3%) | 166 (64.3%) | 186 (55.7%) | |
Thickness of Appendix (mm) | ||||
Median [QPresent,Q3] | 1.10 [0.900,1.30] | 1.20 [1.10,1.40] | 1.20 [1.10,1.40] | < 0.001 |
Surrounding Strand | ||||
Absent | 22 (28.9%) | 14 (5.4%) | 36 (10.8%) | < 0.001 |
Present | 54 (71.1%) | 244 (94.6%) | 298 (89.2%) | |
Appendiceal Intraluminal Gas | ||||
Absent | 76 (100%) | 227 (88.0%) | 303 (90.7%) | 0.007 |
Present | 0 (0%) | 31 (12.0%) | 31 (9.3%) | |
Pneumoperitoneum | ||||
Absent | 76 (100%) | 232 (89.9%) | 308 (92.2%) | 0.016 |
Present | 0 (0%) | 26 (10.1%) | 26 (7.8%) | |
Ileocecal Lymph Node | ||||
Absent | 36 (47.4%) | 77 (29.8%) | 113 (33.8%) | 0.018 |
Present | 40 (52.6%) | 181 (70.2%) | 221 (66.2%) | |
Overall Impression | ||||
No appendicitis according to CT | 5 (6.6%) | 2 (0.8%) | 7 (2.1%) | 0.036 |
Simple appendicitis | 67 (88.2%) | 234 (90.7%) | 301 (90.1%) | |
Non-simple appendicitis | 4 (5.3%) | 22 (8.5%) | 26 (7.8%) | |
