Extraosseous Ewing sarcoma of the thyroid gland

摘要

Ewing sarcoma of the bone is a highly malignant round-cell tumor that typically presents between 10 to 20 years of age and is more common in boys. It can have an extraosseous origin, although it is rare. We report a case of extraosseous Ewing sarcoma in the thyroid gland in a 9-year-old girl.