text: <unk> s are extradural lesions that arise from the<unk>  lining of the facet joints. Most cysts are found at the L4-L5 facet joint, as this is the level where the most biomechanical spinal motion occurs.<unk>  cysts may extend into the neural foramen or spinal canal and result in symptomatic radiculopathy, spinal stenosis, or both. Patients may also experience neurologic claudication if the cyst is large enough to cause substantial spinal cord compression. The differential diagnosis for<unk>  cysts includes arachnoid cysts, Tarlov cysts, schwannomas, and migrated herniated disk fragments.
option_0: Intraspinal synovial cyst
option_1: Spinal disc herniation
option_2: Intraosseous lipoma
option_3: Epidural abscess
option_4: Vertebral osteomyelitis
option_5: Spondylolisthesis
option_6: Unicameral bone cyst
option_7: Spinal tumor