Legend Orbit MR axial T2 images(left) with a single axial T1 (right) reveal an intraconal mass involving the left orbit. The exact relationship of the mass to the optic nerve is not clear in this plane.

Legend Post gad images coronal (left) and axial images demonstrate marked enhancement, with the coronal image demonstrating mass effect on the optic nerve but not originating from the nerve. Key words: orbit mri tumor neoplasia

ENT Diagnosis: B-cell lymphoma of the orbit