Abstract
We report three cases of lumbar intraspinal synovial cyst-Casel, A 58-year-old male was admitted to our hospital because of severe right sciatica. MRI of spine revealed that a low intensity cystic mass in T1 weighted image was located dorsally at the level of the fourth-fifth lumbar vertebral bodies. The cyst was removed with L4/5 medial facetectomy. His sciatica was cured after surgery. Case 2, A 56-year-old male was admitted to our hospital with lumbar intraspinal cyst at the L4/5 on MRI. The cyst was removed microscopically. His sciatic pain disappeared after surgery. Case 3, A 81-year-old female had intermittent cludication with left sciatica. She was admitted to our hospital with intraspinal cyst at the L2/3 on MRI. The cyst was removed. Her pain of the sciatica disappeared. Pathological examination revealed synovial cysts at three cases.
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