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Table 3 Histopathological and immunohistochemical characteristics in 7 cases of GCT of the tongue

From: Granular cell tumors of the tongue: fibroma or schwannoma

Case Capsule PCH S-100 protein Vimentin PGP 9.5 NSE Calretinin GFAP CD68 PAS Ki-67 index (%)a
1 + + + + + + + + 2.57
2 + + + + + + + + + 3.22
3 + + + + + + + + + 1.21
4 + + + + + + + + 0.42
5 + + + + + + + + 1.83
6 + + + + + + + + + 1.63
7 + + + + + + + + 2.42
  1. Abbreviations GCT granular cell tumors, GFAP glial fibrillary acidic protein, NSE neuron-specific enolase, PAS periodic acid-Schiff, PCH pseudocarcinomatous hyperplasia, PGP protein gene product
  2. aThe Ki-67 index was calculated as the percentage of positive cells in a minimum sample of 1000 cells. Mean Ki-67 index, 1.89%