Primary Ewing Sarcoma in the Sphenoidal Sinus: A Case Report.

Ewing's sarcoma (EWS) is a rare malignant bone tumor that primarily affects children and young adults. While it typically affects long bones, it can occur in the head and neck region, including the paranasal sinuses in rare cases. We present a challenging case of a 45-year-old female diagnosed with an EWS of the sphenoidal and the right nasal fossa. A subtotal removal of the mass was performed on the patient followed by combined adjuvant radiotherapy and chemotherapy. Due to its rarity, the diagnosis and management of EWS in the paranasal sinuses are challenging.