Table 2 Surgical outcome related to histopathological subtypes of infra-tentorial space brain tumors
S. no. | Histological types | No. of patients | Post-surgical clinical/radiological outcome | |||||
|---|---|---|---|---|---|---|---|---|
Residual lesion | Symptoms of disease progression | Recurr. | Sev. dis. | EFS | Mort. | |||
Benign lesions | 188 | 35 | 10 | 17 | 09 | 165 | 05 | |
1. | Vestibular (CP angle) schwannomas | 98 | 23 | 05 | 11 | 06 | 85 | 04 |
2. | Trigeminal Schwannomas | 04 | 02 | 01 | 01 | 0 | 03 | 0 |
3. | Meningiomas (grade I, II ) | 34 | 06 | 0 | 01 | 03 | 30 | 0 |
(i) Meningotheliomatous | 18 | 0 | 0 | 0 | 01 | 17 | 0 | |
(ii) Fibrous | 6 | 1 | 0 | 0 | 0 | 06 | 0 | |
(iii) Ttransitional | 3 | 1 | 0 | 0 | 01 | 02 | 0 | |
(iv) Psammomatous | 2 | 0 | 0 | 0 | 0 | 02 | 0 | |
(v) Atypical | 2 | 2 | 0 | 01 | 01 | 00 | 0 | |
(vi) Angiomatous | 1 | 1 | 0 | 0 | 0 | 01 | 0 | |
(vii) Secretory | 1 | 1 | 0 | 0 | 0 | 01 | 0 | |
(viii) Microcystic | 1 | 0 | 0 | 0 | 0 | 01 | 0 | |
4. | Hemangioblastomas | 28 | 04 | 04 | 04 | 0 | 24 | 0 |
5. | Dermoids | 15 | 0 | 0 | 0 | 0 | 15 | 0 |
6. | Epidermoids | 09 | 0 | 0 | 0 | 0 | 08 | 01 |
Malignant lesions | 222 | 130 | 35 | 42 | 16 | 106 | 42 | |
1. | Medulloblastomas | 72 | 31 | 12 | 14 | 07 | 40 | 22 |
2. | C. astrocytomas (HG) | 47 | 33 | 01 | 02 | 02 | 15 | 01 |
3. | Ependymomas | 43 | 18 | 05 | 05 | 04 | 22 | 03 |
4. | C. pilocytic astrocyto. | 24 | 15 | 0 | 0 | 0 | 18 | 0 |
5. | Brainstem gliomas | 16 | 16 | 06 | 09 | 03 | 05 | 07 |
6. | Metastatic lesions | 09 | 06 | 05 | 05 | 0 | 02 | 06 |
7. | Pineoblastomas | 07 | 07 | 03 | 03 | 0 | 04 | 0 |
8. | Meningiomas (grade III) | 04 | 04 | 03 | 04 | 0 | 0 | 03 |
(i)Anaplastic | 03 | 03 | 03 | 03 | 0 | 0 | 03 | |
(ii)Rhabdoid | 01 | 01 | 0 | 01 | 0 | 0 | 0 | |
Total | Posterior fossa lesion | 410 | 165 | 45 | 59 | 25 | 271 | 47 |