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Skull Base. 2009 Nov;19(6):409-16. doi: 10.1055/s-0029-1220207.

Efficacy of Proton Beam Therapy in the Treatment of Ewing's Sarcoma of the Paranasal Sinuses and Anterior Skull Base.

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  • 1Department of Otology and Laryngology, Massachusetts Eye and Ear Infirmary, Boston, Massachusetts.


Ewing's sarcoma involving the sinonasal cavity and anterior skull base is very rare. The purpose of this article is to present our experience with two such cases, which were both treated with combined chemotherapy and proton beam radiation therapy. The patients were selected from a retrospective medical record analysis that was conducted of all patients who were diagnosed with Ewing's sarcoma of the sinonasal cavity at the Massachusetts Eye & Ear Infirmary/Massachusetts General Hospital Cranial Base Center from 2004 to 2008. One of the patients underwent pretreatment endoscopic subtotal resection to facilitate proton beam radiation therapy. Response to treatment was assessed, post-treatment endoscopic biopsies were performed to assure eradication of disease, and treatment complications were recorded. Both patients completed chemotherapy and proton beam radiation therapy without complication. One patient completed treatment in December 2006 and remains disease free. The second patient completed treatment in March 2007 and remains disease free. Both patients developed headaches accompanied by frontal sinus opacification after treatment that required endoscopic drainage. After endoscopic drainage, the opacification and symptoms resolved.


Ewing's sarcoma; anterior skull base; endoscopic surgery; proton beam

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