Comparison of MRI and CT in the Evaluation of Unilateral Maxillary Sinus Opacification

Figure 5

Fungal sinusitis in 7-year-old male with symptoms of nasal obstruction. (a) Coronal unenhanced CT demonstrates left ostiomeatal pattern opacification with maxillary mural osteitis plus expansion of maxillary antrum. This appearance is equivocal and could represent chronic rhinosinusitis, fungal sinusitis, or tumour. However, low signal centrally on (b) coronal STIR, surrounded by peripherally enhancing thickened mucosa on (c) coronal contrast-enhanced T1W, is consistent with a left maxillary into middle meatal mycetoma and maxillary sinusitis.

(a)

(b)

(c)