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(A) Attic defect reconstruction with muscle and bone pate, (B) SISG used to reinforce the posterior fossa and IAC dural defect, (C) SISG used to reinforce the attic defect, and (D) fat graft used to obliterate the defect before placement of resorbable mesh. IAC, internal auditory canal; SISG, small intestinal submucosal graft.
