Abstract Ligamentum flavum cyst of the lumbar spine has seldom been described. The mechanism formation these cysts remains unknown, but it is thought to be part degenerative process. Although they are clearly visible on imaging studies, frequently wrongly diagnosed as ganglion or synovial cysts. Bone erosion rarely associated with this pathology. Most common symptom back and radicular pain due ...

Over a period of 6 weeks , a 69-year-old woman had had gradual onset of low back pain with subsequent development of weakness in the right lower extremity and then numbness in the left lower extremity. Neurologic examination showed decreased sensation to pinprick in both lower extremities, starting at the umbilicus. Temperature and vibratory sensations were absent in the left lower extremity an...

Intraspinal synovial or ganglion cysts are uncommon lesions associated with degenerative lumbosacral spine disease. CT usually reveals cystic lesions adjacent to a facet joint, and they may show calcification. MR imaging of four surgically confirmed cases of intraspinal synovial cysts revealed subtle signal changes compared with CSF. Short TR/TE images showed the lesions to be slightly hyperint...

Lumbar facet synovial cysts are common benign lesions arising from zygapophyseal joint capsule and are thought to result from chronic degeneration. They are usually asymptomatic. With the increasing use of magnetic resonance imaging in daily practice, the incidence of synovial cysts has also increased. While it is not very common, when they are symptomatic, they are generally treated by percuta...

Cystic adventitial disease consists of a collection of clear gelatinous material within an aberrant synovial-type cyst located in the subadventitial plane of the wall of a major artery. Recurrent minor trauma is presumed to potentiate mucin production and enlargement of the cyst with resultant arterial occlusion and symptoms of ischemia. It occurs most commonly in the popliteal artery in young ...