Fig. 1
From: Intrathecal IgG4 synthesis in IgG4 related spinal hypertrophic pachymeningitis: a case report
Myelopathy secondary to marked dural thickening. A, C T2-weighted images showing hypointense circular dural thickening extending over 13 vertebral segments (arrows) causing compressive myelopathy. B, D Contrast enhanced T1-weighted images showing enhancement of the dural abnormality (arrows). E Sagittal CT reconstruction shows no bony abnormality within the spinal canal