Table 1.
Type of Neoplasm | WHO Grade | First Surgery n = 103 |
Repeat Surgery n = 30 |
Total Operated Tumors n = 133 |
p-Value | |||
---|---|---|---|---|---|---|---|---|
n | % | n | % | n | % | |||
Benign tumors | ||||||||
Adenoma hypophysis | 1 | 3.3 | 1 | 0.8 | ||||
Hemangioblastoma | 5 | 4.9 | 1 | 3.3 | 6 | 4.5 | ||
Hemangioma cavernosum | 2 | 1.9 | 2 | 1.5 | ||||
Meningioma | I | 21 | 20.4 | 2 | 6.7 | 23 | 17.3 | |
Schwannoma | I | 15 | 14.6 | 1 | 3.3 | 16 | 12.0 | |
Other benign tumors | 5 | 4.9 | 5 | 3.8 | ||||
Low grade (WHO grade II) | ||||||||
Astrocytoma | II | 3 | 2.9 | 3 | 2.3 | |||
Diffuse astrocytoma | II | 7 | 6.8 | 2 | 6.7 | 9 | 6.8 | |
Oligodendroglioma | II | 1 | 1.0 | 2 | 6.7 | 3 | 2.3 | |
Ependymoma | II | 3 | 2.9 | 3 | 2.3 | |||
Meningioma atypicum | II | 3 | 2.9 | 3 | 10.0 | 6 | 4.5 | |
Central neurocystoma | II | 1 | 1.0 | 1 | 0.8 | |||
Total primary non-malignant tumors | 66 | 64.1 | 12 | 40.0 | 78 | 58.6 | 0.018 | |
Malignant tumors
(WHO grade III, IV) |
||||||||
Anaplastic astrocytoma | III | 5 | 4.9 | 3 | 10.0 | 8 | 6.0 | |
Anaplastic oligodendroglioma | III | 1 | 1.0 | 3 | 10.0 | 4 | 3.0 | |
Anaplastic ependymoma | III | 2 | 1.9 | 1 | 3.3 | 3 | 2.3 | |
Glioblastoma | IV | 16 | 15.5 | 6 | 20.0 | 22 | 16.5 | |
Hemangiopericytoma | III | 1 | 3.3 | 1 | 0.8 | |||
Meningioma anaplasticum | III | 1 | 1.0 | 1 | 3.3 | 2 | 1.5 | |
Supratentorial primitive neuroectodermal tumor | IV | 1 | 1.0 | 1 | 0.8 | |||
Total primary malignant tumors | 26 | 25.2 | 15 | 50.0 | 41 | 30.8 | 0.009 | |
Metastases * | 11 | 10.7 | 3 | 10.0 | 14 | 10.5 | 0.915 | |
Total malignant tumors
(primary + metastases) |
37 | 35.9 | 18 | 60.0 | 55 | 41.4 | 0.018 | |
Total operated tumors | 103 | 100 | 30 | 100 | 133 | 100 |
* Metastases from lung cancer (6), breast cancer (3), intestinal cancer (1), ovarian cancer (1), and melanoma (2).