Primary Ewing's sarcoma of the paranasal sinus with intracranial and intraorbital extension

Extraskeletal Ewing's sarcoma is usually described as a tumor localizing the soft tissues lower extremities and the paravertebral region. Paranasal primary Ewing's sarcomas are extremely rare entity. We present a case of primary Ewing's sarcoma of the paranasal sinus extending left orbit and middle cranial fossa in a 14-year-old male. CT and MRI findings of the rare case are discussed.