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. Author manuscript; available in PMC: 2016 Apr 27.
Published in final edited form as: Am J Surg Pathol. 2009 May;33(5):669–681. doi: 10.1097/PAS.0b013e318194c566

TABLE 3.

Immunohistochemical Staining Results

D2-40 (M/C) S100 (C) Pankeratin (C) EMA (C) Brachyury (N) GFAP (C)
Chordoid glioma (n=4) 3/4 (75%)
ME=1.8, MI=1.5		 4/4 (100%)
ME=3, MI=2.5		 4/4 (100%)
ME=2.8, MI=2		 4/4 (100%)
ME=2.3, MI=2		 0/4 (0%) 4/4 (100%)
ME=3, MI=3
Skeletal myxoid chondrosarcoma (n=6) 6/6 (100%)
ME=2.2, MI=1.8		 6/6 (100%)
ME=3, MI=2.7		 0/6 (0%) 0/6 (0%) 0/6 (0%) 0/6 (0%)
Chordoid meningioma (n=10) 8/10 (80%)
ME=2, MI=1.6		 4/10 (40%)
ME=1, MI=1.5		 2/10 (20%)
ME=2.5, MI=1		 9/10 (90%)
ME=2.3, MI=2.1		 0/10 (0%) 0/10 (0%)
Extraskeletal myxoid chondrosarcoma (n=16) 0/16 (0%) 13/16 (81%)
ME=2.4, MI=1.8		 6/16 (38%)
ME=1.8, MI=1.3		 4/16 (25%)
ME=1.8, MI=1.5		 0/16 (0%) 0/16 (0%)
Chordoma (n=18) 0/18 (0%) 17/18 (94%)
ME=2.5, MI=2.1		 18/18 (100%)
ME=3, MI=3		 17/18 (94%)
ME=2.6, MI=2.2		 18/18 (100%)
ME=3, MI=2.9		 0/18 (0%)
Low-grade chondrosarcoma (n=22) 21/22 (95%)
ME=2.1, MI=2.4		 22/22 (100%)
ME=2.5, MI=2.2		 0/22 (0%) 0/22 (0%) 0/22 (0%) 0/22 (0%)
Enchondroma (n=27) 26/27 (96%)
ME=2.6, MI=2		 27/27 (100%)
ME=2.7, MI=2.5		 0/27 (0%) 0/27 (0%) 0/27 (0%) 0/27 (0%)

C indicates cytoplasmic; EMA, epithelial membrane antigen; GFAP, glial fibrillary acidic protein; M, membranous; ME, mean extent; MI, mean intensity; N, nuclear.