DOI: 10.36347/sjmcr.2024.v12i04.046

Pages: 571-573

We report the case of a 46-year-old female patient with hyperalgesic sciatica caused by a lumbar arthrosynovial cyst (ASK). Lumbar arthrosynovial cysts are relatively rare degenerative lesions of the spine. They may be completely asymptomatic or cause symptoms through compression of nerve structures. They most often develop at the L4/L5 level, where spinal mobility is greatest. Their aetiopathogenesis is uncertain, but degenerative spinal instability is the determining factor in their development. MRI is the examination of choice for diagnosing these lesions. Conservative treatment is not very effective. Surgical resection of the cyst, with or without arthrodesis, remains the most appropriate treatment option.