Case Reports in Dentistry / 2012 / Article / Fig 2

Case Report

Oculomotor Nerve Palsy due to an Odontogenic Abscess Originating from the Mandibular Third Molar

Figure 2

MR images reveal the presence of an abscess in the cavernous sinus area (white arrow, (a)–(d)). Diffusion restriction around the right cavernous sinus indicates an abscess in the diffusion-weighted MR image (a). There is no high signal around the right cavernous sinus in the apparent diffusion coefficient map (b). Precontrast T1-weighted MR image (c). More enhancement around the right cavernous sinus area was observed in the postcontrast T1-weighted MR image (d).