Intraspinal synovial cyst

Case contributed by Dr Roberto Schubert

Presentation

Right low back pain radiating to the L5 dermatoma.

Patient Data

Age: 45
Gender: Male
Modality: MRI

Osteoarthritis of both facet joints at L4/5 with a large right synovial cyst protruding into the spinal canal and displacing the L5 root.

Case Discussion

These juxtaarticular cysts do not always possess the signal characteristics of a simple cyst, so IV contrast may be needed in some cases.

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Case Information

rID: 14352
Diagnostic certainty: Almost Certain
Inclusion in quiz mode: Included

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