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  Indian J Med Microbiol
 

Figure 1: Focused sagittal (a) and axial (b) high-resolution computed tomography images of the temporal bone at the level of mastoid air cells show the dehiscence in the sigmoid plate with sigmoid sinus diverticulum projecting into the mastoid air cells. Sagittal contrast-enhanced magnetic resonance imaging images (c and d) at the same location as (a) showing the sigmoid sinus (thin double arrows) and sigmoid sinus diverticulum, measuring approximately 9 mm × 4 mm, protruding anteriorly (thick arrow)

Figure 1: Focused sagittal (a) and axial (b) high-resolution computed tomography images of the temporal bone at the level of mastoid air cells show the dehiscence in the sigmoid plate with sigmoid sinus diverticulum projecting into the mastoid air cells. Sagittal contrast-enhanced magnetic resonance imaging images (c and d) at the same location as (a) showing the sigmoid sinus (thin double arrows) and sigmoid sinus diverticulum, measuring approximately 9 mm × 4 mm, protruding anteriorly (thick arrow)