Pathobiologic Markers of the Ewing Sarcoma Family of Tumors: State of the Art and Prediction of Behaviour

<table>Classical Ewing’s sarcoma, microscopic image of typical histomorphology.  The lesion comprises patternless sheets of small blue cells with round, regular nuclei, even nuclear margins, minimal cytoplasm, and indistinct boundaries.</table>

Sarcoma

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Figure 1

Figure 1: Pathobiologic Markers of the Ewing Sarcoma Family of Tumors: State of the Art and Prediction of Behaviour 