. Author manuscript; available in PMC: 2016 May 1.

Published in final edited form as: J Oral Maxillofac Surg. 2015 Nov 10;74(5):973–981. doi: 10.1016/j.joms.2015.10.029

Table 2.

Results of immunohistochemical and genetic test

Case	Positive immunohistochemical stains	Negative immunohistochemical stains	Genetic confirmation
1	CD99	N/A	ND
2	CD99, NSE, vimentin	Desmin	ND
3	CD99, FLI1, vimentin, synaptophysin	NSE, S100, desmin, myogenin	ND
4	CD99, vimentin	CK7, CK20, AE1/3, LCA, S100, TTF-1, desmin, CD56, chromogranin	EWS-FLI1 fusion by PCR
5	CD99, FLI1	CK7, CK20, AE1/3, LCA, synaptophysin, chromogranin, CD56, S100, actin, desmin, EMA, WT1	EWSR1 rearrangement by FISH
6	CD99, FLI1	CD3, TdT	EWSR1 rearrangement by FISH

NSE – neuron specific enolase, CK – cytokeratin, LCA – leukocyte common antigen, TTF-1 – thyroid transcription factor – 1, TdT – terminal deoxynucleotidyl transferase, EMA – epithelial membrane antigen, WT1 – Wilms tumor 1, N/A – not applicable, ND – not done