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TABLE 1: Summary of histologic diagnoses
Tumor Group Histologic Diagnosis No. of Patients (n = 49)
Malignant (n = 36) High-grade astrocytoma 8
 High grade (n = 16)  Glioblastoma multiforme 3
 Grade 3 astrocytoma 5
Metastasis 8
 Lung cancer 4
 Breast cancer 2
 Ovarian cancer 1
 Condromyxoid sarcoma 1
 Low grade (n = 20) Low-grade astrocytoma (grade 2) 12
Nonastrocytic gliomas 8
 Oligodendroglioma 6
 Epandimoma 2
Benign (n = 13) Meningioma 7
Dysembryoplastic neuroepithelial tumor 3
Tuberculoma 3

Tumor Group	Histologic Diagnosis	No. of Patients (n = 49)
Malignant (n = 36)	High-grade astrocytoma	8
High grade (n = 16)	Glioblastoma multiforme	3
	Grade 3 astrocytoma	5
	Metastasis	8
	Lung cancer	4
	Breast cancer	2
	Ovarian cancer	1
	Condromyxoid sarcoma	1
Low grade (n = 20)	Low-grade astrocytoma (grade 2)	12
	Nonastrocytic gliomas	8
	Oligodendroglioma	6
	Epandimoma	2
Benign (n = 13)	Meningioma	7
	Dysembryoplastic neuroepithelial tumor	3
	Tuberculoma	3