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Twenty-three-year-old male MRI. (A) Axial T1WI. (B) Axial T2WI. (C) Postgadolinium axial T1WI subtraction image. (D) Postgadolinium axial T1WI. (E) Sagittal T1WI. (F) Postgadolinium sagittal T1WI. There is an invasive mass filling the right nasal cavity, showing enhancement postgadolinium (C, D, and F) and marked hyposignal on T2WI (B). MRI, magnetic resonance imaging; T1WI, T1-weighted imaging; T2WI, T2-weighted imaging.
