Immunohistochemical Analysis of CD99 and PAX8 in a Series of 15 Molecularly Confirmed Cases of Ewing Sarcoma

Table 4

Immunohistochemistry and FISH results.

Cases	Immunohistochemistry		FISH. EWSR1 ((%) of cells with rearrangement)
	CD99	PAX8
1	Strongly positive	Mild	92
2	Strongly positive	Negative	85
3	Strongly positive	Moderate	60
4	Strongly positive	Mild	94
5	Strongly positive	Negative	87
6	Strongly positive	Moderate	75
7	Strongly positive	Moderate	92
8	Strongly positive	Moderate	80
9	Strongly positive	Mild	95
10	Strongly positive	Mild	65
11	Strongly positive	Mild	41
12	Strongly positive	Mild	23
13	Strongly positive	Mild	80
14	Strongly positive	Mild	62
15	Strongly positive	Negative	26