Medical OSCES

Medical OSCES for medical students and PG Doctors

Radiology Synovial Cyst of the Lumbar Spine

Synovial Cyst of the Lumbar Spine

Findings:
- Low T1, high T2 extradural lesion contiguous with the facet joint
- Surrounding enhancement
- Mass effect
Associated with degenerated joints – 75% at L4-5
Typically posterolateral
Contents variable – clear fluid, calcium, hemorrhage
ddx:
- Migrated herniated disc
- Perineural cyst (close to nerve root)
- Schwannoma (low sig capsule)
- Hematoma

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