Facet joint synovial cyst

Case contributed by Andrew Dixon
Diagnosis almost certain


Right L5 radiculopathy. ? disc prolapse

Patient Data

Age: 60 years
Gender: Female

Lumbar spine MRI


L3-4: Mild circumferential disc annular bulging. Mild central canal narrowing. Mild bilateral facet joint arthropathy. Mild bilateral foraminal narrowing.

Case Discussion

Degenerative right L5-S1 facet joint synovial cyst which contacts the exiting right L5 nerve root and also compresses the traversing right S1 nerve root.

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