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Table 3 Semi-quantitative grading of Sp17 expression in NS tumours.

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

Sample Immunohistochemistry Pattern
Astrocytoma 1 +++ Cyto
Astrocytoma 2 +++ Cyto
Ependymoma ++ Cyto
Glioblastoma 1 ++ Cyto
Glioblastoma 2 +++ Cyto
Glioblastoma 3 +++ Cyto
Meningioma + Cyto
  1. Notes: + = low frequency (x ≤ 25%) of cells immunopositive for Sp17; ++ = moderate frequency (25% < x ≤ 50%) of cells immunopositive for Sp17; +++ = high frequency (50% < x ≤ 75%) of cells immunopositive for Sp17; ++++ = very high frequency of cells immunopositive for Sp17 (75% < x ≤ 100%). Cyto = cytoplasmic Sp17 localization.