Presentation
Chronic low back pain.
Patient Data
Spondylodegenerative changes.
Lumbar scoliosis with convexity towards left side and apex at L3-4 level.
Lower lumbar and sacral dural calcifications and rod-shaped coarse calcifications on L5-S1 and S2-3 levels narrowing the spinal canal.
Diffuse spondylodegenerative changes.
Lumbar scoliosis with convexity towards left side and apex at L3-4 level.
Status post spinal laminectomy at L3 and L4 vertebrae.
Multilevel diffuse posterior disc bulge from L1-2 level through L5-S1 level, indenting ventral thecal aspect and encroaching upon exit foramina bilaterally, notably at L3-4 levels.
Rod-shaped intraspinal calcifications at the level of L5/S1 vertebrae and inside sacral spinal canal (S2/3) expressing high T1 and low T2 signal and exerting spinal canal stenosis.
Small cauda equine cyst-like lesion is seen opposite L4 vertebral body averaging 2.2 cm in length ? sequel of arachnoiditis.
Spondylodegenerative changes.
Lumbar scoliosis with convexity towards left side and apex at L3-4 level.
Laminectomy at L3 and L4 levels.
Lower lumbar and sacral dural calcifications and rod-shaped coarse calcifications on L5-S1 and S2-3 levels narrowing the spinal canal.
Diffuse spondylodegenerative changes.
Lumbar scoliosis with convexity towards left side and apex at L3-4 level.
Status post spinal laminectomy at L3 and L4 vertebrae.
Multilevel diffuse posterior disc bulge from L1-2 level through L5-S1 level.
Multiple dural and rod-shaped intraspinal calcifications at the level of L5/S1 vertebrae and inside sacral spinal canal (S2/3), exerting spinal canal stenosis.
L3 calcified vertebral body marrow area and a small rounded fat density area adjacent to inferior endplate.
Case Discussion
Intraspinal calcification/ossification with history of spinal surgery is supportive for diagnosis of arachnoiditis ossificans. It is a rare cause of spinal canal stenosis and considered a sequel of chronic arachnoiditis. CT is the modality of choice to detect ossified intraspinal lesions. MRI can show signs of arachnoiditis like clumping of nerve roots and intradural cysts.
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