<prompt> CD 34 is a tumor marker used for-Ewings sarcomaMyofibrosarcomaAlveolar soft pa sarcomaInflammatory myofibroblastic tumor  <response>: Harshmohan textbook of pathology 7th edition. CD 34 is an immunohistochemical stain for sarcoma i;e, endothelial marker. S100 is the immunohistochemical stain for Ewings sarcoma.. 