Extraskeletal Ewing’s Sarcoma Arising from the Sciatic Nerve: A Diagnostic Challenge

Figure 3

(a) Microphotograph of intraneural Ewing’s sarcoma showing sheets of monotonous small round cells (10x magnification; H&E stain). (b) FISH study of the intraneural Ewing’s sarcoma. The split red dots indicate a rearrangement of the EWS gene.

(a)

(b)