Immunohistochemistry showed the tumor to be negative for CK AE1/AE3, EMA, ALK1, CD20, CD30, glipican3, CD117, LCA, PLAP, inhibin, desmin, INI1, MelanA, SOX10, S100, synaptophysin, GFAP and CD34, while positive for SATB2, BCL6 corepressor (BCOR), ERG, CD99 and FLI1. This evidence concerns the gene SYP and neoplasm.