CT
Axial bone window
Axial non-contrast
Coronal bone window
Why is the fungal ball hyperdense on CT?
Clustering of the fungal hyphae and punctate calcifications
If there is concern for invasive sinusitis, what additional study should be performed?
MRI to further characterize invasion
Complete opacification of the right maxillary sinus, with near complete opacification of the right ethmoid, sphenoid, and frontal sinuses. Osseous remodeling throughout the right paranasal sinuses. Ill-defined hyperdensity in the right nasal cavity, with obliteration of the right middle turbinate.