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FIG 6. Case 6. A 41-year-old man with a nasal-cavity lesion.

A, Axial T1-weighted MR image (480/20) shows an elongated lesion with intermediate signal intensity in the left cavernous sinus and orbital apex (arrow).

B, Axial T2-weighted MR image (2630/80) shows a mass of intermediate signal intensity (arrow).

C, Contrast-enhanced T1-weighted MR image (480/20) shows diffuse contrast enhancement and narrowing of the internal carotid artery (arrow).