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

Figure 3

IgG4 disease. A 31-year-old female presented with epistaxis and medial-gaze diplopia. (a) Axial unenhanced CT shows soft tissue opacification of the left maxillary antrum with destruction of the antral walls and lateral pterygoid plate. (b) Coronal and (c) axial contrast-enhanced T1W demonstrates extension of the abnormally enhancing soft tissue (with restricted diffusion, not shown) into the orbit, pterygopalatine fossa, and involvement of the left infraorbital nerve.

(a)

(b)

(c)