Fig. 7.

Postoperative MRI demonstrating total cyst removal with subtotal capsule excision in the superoposteromedial portion of the lateral wall of the cavernous sinus (LWCS). The immediate postoperative DWI MRI (a, b) shows no diffusion restriction except for a minimal focal signal corresponding to the capsule remnant (b). At the 1-year follow-up, T2-weighted MRI in coronal and axial planes (c, d) reveals decompression of the cavernous sinus and a signal intensity isointense to CSF, indicating absence of recurrence.