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Radiological features of 18 cases of poor-grade aneurysm.
| Variable | Cases, n |
|---|---|
| Location of aneurysm | |
| Anterior circulation | 2 |
| Anterior communicating artery | 7 |
| Middle cerebral artery | 6 |
| Posterior circulation | 3 |
| Diameter of aneurysm, mm | |
| <5 | 7 |
| 5–10 | 9 |
| >10 | 2 |
| Volume of hematoma, ml | |
| <30 | 9 |
| 30–50 | 5 |
| >50 | 4 |
