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. 2016 Aug 3;14:203. doi: 10.1186/s12957-016-0963-9

Fig. 2.

Fig. 2

Postoperative histopathological findings. The tumor showed primitive round or spindle-shaped undifferentiated cells alternating with zones of well-differentiated cartilage (a HE × 200, b HE × 400). cf Histopathological examination of the specimen stained positive for S-100, Vimentin, NSE, and CD99, respectively