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Chondrosarcoma of the temporal bone.

Eight patients with a chondrosarcoma of the temporal bone have been treated at the National Hospital for Neurology and Neurosurgery over a 16-year-period. Patients usually presented with symptoms and signs of lower cranial nerve palsies, though in most cases these resolved after surgery. This result, combined with the fact long-term survival can be achieved, makes surgical treatment of these tumours the best option, as the response to primary radiotherapy is uncertain. Surgical access is difficult, but an infratemporal approach is probably the most satisfactory. The use of post-operative adjuvant radiotherapy may provide some benefit. Long-term follow-up is necessary, and for this magnetic resonance imaging (MRI) is preferable to computed tomography (CT) scanning.