Preauricular approach to infratemporal fossa

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Abstract
We present an approach to the skull base that allows access to both the infratemporal fossa and the middle cranial fossa with minimal morbidity. This approach is different from most of the previously described approaches in that it uses a preauricular incision, preserves the facial nerve, and avoids the mastoid bone. It involves dividing the zygomatic arch and displacing it inferiorly, dividing the malar eminence (zygoma) and displacing it anteriorly, and cutting the coronoid process and retracting it superiorly with the attached temporalis muscle. Reconstruction is accomplished by using the temporalis muscle or a pericranial flap to cover the dura, a free fat graft to fill the space left by tumor excision, and by wiring the zygomatic arch and malar eminence into their original positions. Case reports of both benign and malignant lesions are presented.

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