Demystifying MR Neurography of the Lumbosacral Plexus: From Protocols to Pathologies

Figure 6

65-year-old male admitted to the emergency room with history of sudden low back pain radiating to the left lower limb. MRN images in axial T1 (a), axial T2 fat suppression (b), coronal diffusion-weighted imaging (c), and coronal diffusion-weighted imaging MPR reconstruction (d) show left foraminal/extreme lateral discal hernia in L3-L4 level, with extruded discal fragment (solid arrow) compressing the left L3 nerve root (wavy arrow) along its emergence. Slight thickening is associated in the proximal segment, as well as T2 hyperintensity and diffusion restriction (arrowhead).

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