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. 2023 Jul 24;14:1215636. doi: 10.3389/fneur.2023.1215636

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Copyright © 2023 Shim, Lee, Park, Kim, Koo and Song.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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(A) Preoperative axial temporal bone computed tomography (TBCT) image of Subject 3 shows a diverticulum protruding through the mastoid air cells with bony dehiscence (arrow). (B,C) Follow-up postoperative TBCT axial image with and without contrast enhancement shows a residual bony dehiscence (arrow). (D) The dehiscence is successfully managed by transmastoid reshaping with a cortical bone chip, a piece of temporalis fascia, and bone cement (arrow). (E) The residual bony dehiscence was exposed. (F,G) Revision reshaping of the sigmoid sinus diverticulum with dehiscence was performed with a cortical bone chip, a piece of temporalis fascia, and bone cement to reconstruct a secure sinus wall.