Key Information to Be Provided by Imaging
• Presence of thickened nasal and paranasal sinus mucosa
• Entity of bony and cartilaginous alterations
• Presence of sinusitis, with particular attention to complications requiring surgical treatment
• Entity of intraorbital involvement in those patients with ocular symptoms (diplopia, exophthalmos, reduced visual acuity)
• Atypical pattern of diffusion, like perineural spread (Mazziotti et al. 2001)
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