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CSF cytology and HIV serology were both negative. EMG, however, confirmed the clinical findings of polyradiculopathy. T1W and T2W MRI of the lumbar spine demonstrated diffuse thickening of the nerve roots of the cauda equina, which enhanced following intravenous gadolinium administration (Figs. 1 and 2). No parenchymal involvement was seen.
1 A diffuse disc bulge refers to one of the discs in your spine. 2  The discs separate the bones of your spine, called vertebrae, and provide cushion support as well as motion to the vertebrae. At each level in the spine where there is a disc, right and left nerve roots come out to innervate tissues in the body. 2  The holes that they come out are called neural foramina. 3  This statement means that the size, or diameter, of those holes has been minimally narrowed by this diffuse disc bulge.