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Table 2 Sperm protein 17 expression frequencies in different histological subtypes of primary nervous system neoplasms. The lesions are categorised on the basis of their presumed cell of origin.

From: Sperm protein 17 is expressed in human nervous system tumours

Cell of origin number positive/total number tested
Glial cell
Astrocytoma 2/6
Oligodendroglyoma 0/5
Ependymoma 1/1
Glioblastoma 3/16
Arachinodal cell
Meningioma 1/25
Nerve Sheath cell
Swhanoma 0/4
Neurofibroma 0/1