[Surgery of benign tumors of the anterior base of the skull].

Our surgical techniques for the complete removal of large tumours of the anterior skull base are described. Neurosurgeon and otolaryngologist should perform this surgery together. However, only in few cases a combined transfrontal and subfrontal approach is indicated. In cases where the sinuses of both sides are involved the approach of Schloffer offers some advantages in combination with modern techniques of reconstruction. Special attention is directed to the reconstruction of large defects of the skull base with ceramics (e.g. highly pure aluminium-oxide-ceramic, porous tricalciumphosphate ceramic).