PATZ1 sarcomas do not consistently express CD99, however, may variably express CD34, and show a divergent phenotype with both myogenic (desmin, myogenin, MyoD1) and neurogenic (S100 protein, SOX10) markers [91, 98, 99, 102], while neuroendocrine markers are usually absent. This evidence concerns the gene PATZ1 and sarcoma.