Extraskeletal Ewing Sarcoma

**Semantic type:** Neoplastic Process

**Definition:** A rare malignant neoplasm of the soft tissues. It is typically a disease of children and young adults. Most commonly occurs in the paravertebral region, chest wall, pelvis and lower extremities. Treatment includes local excision with consideration for post-operative chemotherapy and/or radiotherapy.

**Synonyms:** - EES - Extra-Osseous Ewing's Sarcoma - Extraosseous Ewing Sarcoma - Extraosseous Ewing Sarcoma - Extraosseous Ewing's Sarcoma - Extraosseous Ewing's Tumor - Extraskeletal Ewing sarcoma - Extraskeletal Ewing's Sarcoma