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Up to: Hereditary disease · Sarcoma · Ewing sarcoma/peripheral primitive neuroectodermal tumor

Ewing sarcoma

A small round cell tumor that lacks morphologic, immunohistochemical, and electron microscopic evidence of neuroectodermal differentiation. It represents one of the two ends of the spectrum called Ewing sarcoma/peripheral neuroectodermal tumor. It affects mostly males under age 20, and it can occur in soft tissue or bone. Pain and the presence of a mass are the most common clinical symptoms.

124 trials tagged with this condition →