Fig. 5From: Magnetic resonance imaging indicator of the causes of optic neuropathy in IgG4-related ophthalmic diseaseOptic nerve was compressed by pseudotumor masses. Axial and coronal contrast enhanced T1-weighted MRI showing pseudotumor mass circles of optic nerve, was compressed by pseudotumor masses (white arrow) (a). Extraocular muscles appeared enlarged as masses and optic nerves were oppressed (white arrowhead) (b)Back to article page