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. Author manuscript; available in PMC: 2020 Nov 3.
Published in final edited form as: J Cancer Res Clin Oncol. 2019 Mar 20;145(5):1273–1281. doi: 10.1007/s00432-019-02895-2

Figure 1: Histologic features of undifferentiated round cell sarcomas with EWSR1-NFATc2 fusion.

Figure 1:

Undifferentiated round cell sarcomas with EWSR1-NFATc2 fusion were composed of relatively monotonous cells with a faint eosinophilic to clear cytoplasm and large, chromatin dense nuclei (a, b). The tumor matrix variably contained thin to coarse collagen bundles, which separated tumor cells and appeared as a nested growth pattern (c, d). One case presented with a myxoid tumor matrix (e). Focal necrosis was observed in two cases (f). Inflammatory cells were variably present and were composed of eosinophilic leukocytes (g, h). Magnification: 400-fold. Scale bars: 20 μm.