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After excision of tumor, all visible air cells are obliterated with bone wax and the aditus ad antrum is plugged with temporalis fascia and wax. The dural defect is then repaired with a tapered piece of abdominal fat inserted snugly into the cerebellopontine angle, also filling the surgical cavity. The cranioplasty flap is suture-suspended with the musculoperiosteum at the edge of the surgical cavity to help compress and medialize the fat graft for a watertight closure.
