Left & middle: axial T2WI's show left sphenoid sinus mucosal thickening
with hypointense central portion.
Right: axial proton density image shows heterogeneous slightly hypointense
material filling the left sphenoid sinus. This is not appreciated on the T2WI.
Top and bottom left: sagittal and coronal T1WI's again show the sphenoid contents
that are heterogeneous and hypointense to brain parenchyma.
Top and bottom right: axial and coronal T1WI's with gadolinium show enhancement
of the mucosa. There is no enhancement of the internal component.
Key words: mri sinus infection inflammation
Chronic sphenoid sinusitis
with inspissated mucous