The most common location to find extraskeletal Ewing sarcoma is:
the paravertebral region
Compared to the age group that skeletal Ewing sarcoma is found in, what ages is extraskeletal Ewing sarcoma seen in?
EES is seen in a slightly older group of individuals. The average is 20 years of age.
Core biopsy taken under CT guidance.
A large soft tissue tumor is present in the posteromedial region about the knee. There are areas of hypoattenuation mixed with attenuation similar to muscle.