Table 7 Frequency of non-tumour findings on direct access CT imaging
Abnormality | Frequency | |
|---|---|---|
Total | Significant (%) | |
Cerebral atrophy | 206 | 81 (39.3) |
Vascular | 195 | 48 (24.6) |
Sinus disease | 58 | 24 (48.0) |
Arnold Chiari malformation type 1/tonsillar ectopia | 27 | 9 (33.3) |
Benign cystic lesion | 20 | 2 (10.0) |
Ventricular abnormality | 11 | 8 (72.7) |
ENT tumour | 4 | 1 (25.0) |
Other | 38 | 4 (10.5) |
Total | 559 | 177 (31.1) |