The right nasal lesion shows deep low T2 signal on MRI and mild diffuse post Gadolinium enhancement. Smaller zones of cystic nature are noted with bright T2 signal and no postcontrast enhancement.
Superiorly, the mass exerts expansile thinning of the anterior skull base. No osseous interruptions. No intracranial extensions.
Laterally, it exerts marked expansile bowing of the lamina papyracea, smoothly encroaching on the orbital contents near the apex. Still, no optic nerve compression. Also noted obstruction of the maxillary antrum drainage with filling by thickened mucosa and retained secretions.