Figure 3. Axial (a) and coronal (b) MRI showing an expanded right sphenoid sinus with hyper-intense signal on T2 weighted images and mild peripheral enhancement

From

Acute Third Nerve Palsy with Pupillary Sparing: A Rare Manifestation of Sphenoid Sinus Mucocele

Kumar S, Mehra R, Chauhan N

Neuro-Ophthalmology & Visual Neuroscience. 2021, 6(1), 1-3 doi:10.12691/novn-6-1-1