84-year-old male with bilateral neuropathy, primarily RLE weakness and R foot drop. Also fatigue. History of lymphoma with RChop therapy in 2013. No radiation. History of RA. Evaluate for lumbosacral plexopathy, with particular interest of the right, although there is bilateral neuropathy on the EMG. The exam is significantly limited by motion artifact. Please refer to the recent previous dedicated lumbar spine MRI for characterization of the lower lumbar spine levels. The right L4 nerve root is again seen and somewhat thickened and ill-defined compared to the left side which is unchanged. The configuration of the right sacral foramina and bony central spinal canal involving the upper to mid L4 level is similar prior exams, with slight expansion on the right, likely developmental. There is no definite abnormal enhancement or mass involving the lumbosacral plexus.
No abnormal enhancement or mass involving the lumbosacral plexus. Please refer to the recent previous lumbar spine MRI performed on 8/16/2016 for level by level characterization of the lower lumbar spine.