Click on image to view larger version.
Fig 1. Subject 24. Axial CT scan at the level of the common crus (black arrow) shows a small bone defect caused by presumed AG (white arrow), located at the lateral third of the posterior wall of left temporal bone. Although a focal loss of the posterior wall of the mastoid air cells is also present, there is no evidence of tympanomastoid opacification. This 66-year-old woman presented with hemifacial spasm, and there was no clinical feature suggesting CSF leakage.
