| Frequency (n) | Percentage (%) |
Toxoplasmosis | 13 | 37.14 |
Tuberculosis | 6 | 17.14 |
Cerebral atrophy | 6 | 17.14 |
HIV encephalitis | 5 | 14.28 |
PMLa | 3 | 8.57 |
Lymphoma | 2 | 5.71 |
Total | 35 | 100.0 |