Neuro_MR_orbit: 69 M, left proptosis


69 yo M presenting with left-sided proptosis

Findings / Diagnosis

1. Orbital lymphoma (mantle cell): irregular enhancing, T2 isointense to hypointense tissue in left orbit encasing the optic nerve sheath with associated restricted diffusion. Mild surrounding infiltrative changes/edema in the left orbital fat and muscles. Also mildly enlarged left lacrimal gland. Additional smaller similar appearing lesions in the right orbit without mass effect.

DDx: Optic nerve sheath meningioma, idiopathic orbital inflammation

Accession: CL27388500

Study description: MR Orbits w/wo