M.R.I. of lower dorsal & lumbo-sacral spine has been performed using a dedicated spine quadrature coil. turbo spin-echo, spin echo&fast field echo sequences were used to obtain T1 & T2 weighted images in sagittal & axial planes.
there is normal alignment &curvature of the lumbar spine. the vertebrae reveal normal marrow signal intensity. degenerative reduced signal intensity with maintained height of L4-5 IV disk is noted on T2 wtd. images. mild reduction in signal intensity of rest of the lumbar IV disks is also noted.
a diffuse annular bulge with superadded small,left paracentralo disk herniation is noted at L4-5,producing marked compression of the exiting left nerve root & mild compression of the thecal sac.
there is a mild diffuse annular bulge at L2-3 & L3-4, producing minimal indention of thecal sac without exiting nerve root compression.
focal area of mild ligamentum flavum hypertrophy is seen at L4-5, producing mild indention of thecal sac from the posterolateral aspect. mild facetal arthropathy is noted at L4-5 & L5-S1.
the conus & visualised lower dorsal spinal cord appear normal. there is no pre / paravertebral soft tissue abnormality.
the bonyantero-posterior lumbar canal dimensions at midvertebral levels from L1 to S1 in mm. measure approx. as
suggesting no developmental / bony canal stenosis.
additional T2 wed. sagittal images of the cervical & upper dorsal spine wetre obtained, which reveal mild reversal of cervical lordosis without significant IV disk bulge / herniation or extrinsic cord parenchymal compression at any level.
a diffuse annular bulge with superadded small, left paracentral disk herniation at L4-5, producing marked compression of the exiting left nerve root & mild compression of the thecal sac.
a mild diffuse annular bulge at L2-3& L3-4, producing minimal indention of thecal sac without exiting nerve root compression.
focal area of mild ligamentum flavum hypertrophy at L4-5 & mild facetal arthropathy at L4-5& L5-S1.
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