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[Chondrosarcoma of the sphenoethmoid complex: Case report].

BACKGROUND
Chondrosarcomas are rare malignant mesenchymal tumors of unknown etiology. Only 5 to 10 % appear in the head and neck region.


PATIENT AND RESULTS
We report the case of a 63 year old woman with a chondrosarcoma of the sphenoethmoidal complex extending into the anterior cranial fossa. The tumor was subtotally resected via an osteoplastic lateral rhinotomy. Postoperatively, a fractionated radiation therapy with carbon ions (Schwerionen) was applied. There was no evidence of recurrence one year after therapy.


CONCLUSION
Recent prognostic improvements of skull base chondrosarcomas by combination of skull base surgery and innovative radiation therapy are discussed and the literature is presented.