Table 3.
Etiology of false positive findings
| False positive etiology | Count | % |
|---|---|---|
| Hyperdense structure | 24 | 32.4 |
| Calcification | 10 | 13.5 |
| Meningioma | 5 | 6.8 |
| Hyperdense mass | 3 | 4.1 |
| Choroid plexus | 2 | 2.7 |
| Calcified oligodendroma | 1 | 1.4 |
| Pineal calcification | 1 | 1.4 |
| Colloid cyst | 1 | 1.4 |
| Sellar mass | 1 | 1.4 |
| Thick dura | 19 | 25.7 |
| Dura | 3 | 4.1 |
| Falx | 8 | 10.8 |
| Tentorium | 8 | 10.8 |
| Vessel | 8 | 10.8 |
| Vessel | 6 | 8.1 |
| Aneurysm | 2 | 2.7 |
| Dural Sinus | 5 | 6.8 |
| Non-specific | 5 | 6.8 |
| Imaging artifact | 3 | 4.1 |
| High intrinsic gyral density | 3 | 4.1 |
| Post-surgical | 3 | 4.1 |
| Cortical laminar necrosis | 2 | 2.7 |
| Osseous lytic lesion | 2 | 2.7 |