1/87. Lumbar intraspinal synovial cysts of different etiologies: diagnosis by CT and MR imaging.Intraspinal synovial cysts arises from a facet joint and may cause radicular symptoms due to nerve root compression. In the present study, three surgically and histologically proved cases of synovial cyst of the lumbar spine with different etiology are described. The purpose of this report is to illustrate the imaging features of various etiologies of intraspinal synovial cysts allowing a correct preoperative diagnosis. review of the literature enables us to say that to our knowledge, there is no reported article collecting the imaging findings of intraspinal synovial cysts with different etiologies. Only single cases with rheumatoid arthritic or traumatic origin have been reported to date. We believe that computed tomography and particularly magnetic resonance imaging are the methods of choice which provide the most valuable diagnostic information.- - - - - - - - - - ranking = 1keywords = spinal (Clic here for more details about this article) |
2/87. Subaxial cervical synovial cyst presenting with myelopathy. Report of three cases.Synovial cysts occur infrequently in the spinal canal and are most often associated with degenerative facet joints. Despite the prevalence of degenerative spinal disease, symptomatic synovial cysts are extremely uncommon. There have been only two previously reported cases of subaxial degenerative synovial cysts of the cervical spine in patients who presented with a clinical picture of spinal cord compression. The authors report three additional patients treated for degenerative cervical synovial cysts who presented with myelopathy. In all three patients the cyst was successfully excised and a good clinical outcome achieved.- - - - - - - - - - ranking = 12.695477610682keywords = myelopathy, spinal, spinal cord, cord (Clic here for more details about this article) |
3/87. Cervical synovial cysts: case report and review of the literature.The authors describe the case of a 58-year-old man with a 6-month history of severe myelopathy. CT scan and MRI of the spine revealed a cystic formation, measuring about 1 cm in diameter, at C7-T1 at a right posterolateral site at the level of the articular facet. At operation the mass appeared to originate from the ligamentum flavum at the level of the articular facet and was in contact with the dura mater. Once the mass had been removed, there was a significant amelioration of the patient's symptoms. As previously suspected, histological aspect was synovial cyst. Cervical synovial cysts are extremely rare and, as far as we know, only 22 cases have so far been described in the literature. Diagnostic radiological investigations used were CT scan and MRI. At CT scan the most important diagnostic findings are a posterolateral juxtafacet location of the mass, egg-shell calcifications on the wall of the cyst, and air inside the cyst. At MRI the contents of the cyst are iso/hypointense on T1- and hyperintense on T2-weighted images. There may also be a hypointense rim on T2-weighted images, which enhances after i.v. administration of gadolinium. Surgical treatment consists of removal of the mass. Fixation of the vertebral segments involved is not always necessary.- - - - - - - - - - ranking = 2.4272455469889keywords = myelopathy (Clic here for more details about this article) |
4/87. Craniocervical junction synovial cyst associated with atlanto-axial dislocation--case report.A 51-year-old female presented with a rare case of synovial cyst at the cruciate ligament of the odontoid process associated with atlanto-axial dislocation, manifesting as a history of headache and numbness in her left extremities for 5 months, and progressive motor weakness of her left leg. neuroimaging studies revealed a small cystic lesion behind the dens, which severely compressed the upper cervical cord, and atlanto-axial dislocation. The cyst was successfully removed via the transcondylar approach. C-1 laminectomy and foramen magnum decompression were also performed. Posterior craniocervical fusion was carried out to stabilize the atlanto-axial dislocation. The cyst contained mucinous material. Histological examination detected synovial cells lining the fibrocartilaginous capsule. Synovial cysts of this region do not have typical symptoms or characteristic radiographic features. Careful preoperative evaluation of the symptoms and a less invasive strategy for removal of the cyst are recommended.- - - - - - - - - - ranking = 0.011652646694762keywords = cord (Clic here for more details about this article) |
5/87. Lumbar spinal synovial cyst presenting with neurological deficit. A case report and review of the literature.A spinal synovial cyst is a rare condition. We reported a case of lumbar spinal synovial cyst presenting neurological deficit. A 78-year-old woman was admitted to our hospital with the low back pain radiating to the left buttock. A myelography with computed tomography and magnetic resonance imaging revealed an extradural cystic lesion at the L5 and S1 level. At the time of surgery, a standard posterior approach was used to expose the posterior elements from L5 to S1. An en bloc laminectomy and total removal of the cyst was performed at the L5 to S1 level. The postoperative recovery was uneventful except for a slight pain in the left leg which persisted for some time.- - - - - - - - - - ranking = 0.85714285714286keywords = spinal (Clic here for more details about this article) |
6/87. synovial cyst of the transverse ligament of the atlas in a patient with os odontoideum and atlantoaxial instability.STUDY DESIGN: A case report and review of the literature. OBJECTIVE: To describe the diagnosis and successful treatment of a synovial cyst arising from the transverse ligament in a patient with os odontoideum and atlantoaxial instability. SUMMARY OF BACKGROUND DATA: Synovial cysts arising from the transverse ligament of the atlas are extremely rare. Development of a synovial cyst is thought to be attributable to degenerative changes of the C1-C2 facet joints or to microtrauma. Direct excision of the cyst is the only treatment cited in previous reports. methods: A synovial cyst arising from the transverse ligament of the atlas in a 45-year-old man with os odontoideum and atlantoaxial instability was treated surgically with posterior atlantoaxial fusion alone. The magnetic resonance images, surgical treatment, and related literature are reviewed. RESULTS: Preoperative magnetic resonance images of the cervical spine showed a large cystic mass located ventral to the cord arising at the level of the transverse ligament of the atlas: the mass was of low signal intensity on T1-weighted images, was of high signal intensity on T2-weighted images, and was enhanced marginally with gadolinium-DTPA on T1-weighted images. Spontaneous regression of the cyst was identified on the follow-up magnetic resonance images taken 3 months after C1-C2 posterior wiring and fusion. CONCLUSIONS: A patient with a synovial cyst arising at the C1-C2 junction ventrally at the level of the transverse ligament showed spontaneous regression of the lesion after C1-C2 posterior wiring and fusion.- - - - - - - - - - ranking = 0.011652646694762keywords = cord (Clic here for more details about this article) |
7/87. Spontaneous remission of a solitary intraspinal synovial cyst of the lumbar spine.We report on a 15-year-old boy in whom a spontaneous remission of a symptomatic synovial cyst, possibly emanating from the L4-5 facet joint, was noted. The medical history suggested that sport-related overactivity and/or minor trauma was the underlying cause. Conservative treatment for several months may be one treatment option if the cyst wall is not calcified and the symptoms and signs related to radiculopathy show a gradual decrease.- - - - - - - - - - ranking = 0.57142857142857keywords = spinal (Clic here for more details about this article) |
8/87. Symptomatic cervical synovial cyst associated with an os odontoideum diagnosed by magnetic resonance imaging: case report and review of the literature.STUDY DESIGN: The first case of a synovial cyst of the upper cervical spine associated with os odontoideum diagnosed by magnetic resonance imaging is presented. OBJECTIVES: To evaluate distinct magnetic resonance imaging findings of a cervical synovial cyst located anterior to the cord and discuss its association with os odontoideum. These findings may guide further investigations. BACKGROUND: Synovial cysts of the spine are uncommon findings. They occur mostly dorsolaterally and with greatest frequency in the lumbar spine and are rarely symptomatic. No association with os odontoideum has been reported before. methods: A single subject with symptoms of deterioration in his hand functions was examined by a 2. 0-T magnetic resonance imager. RESULTS: magnetic resonance imaging of the cervical spine showed an os odontoideum connected to the body of C2 by a synovial joint that had a cystic extension posteriorly compressing the cord. CONCLUSION: Synovial cysts should be considered in the differential diagnosis of an extradural mass of the upper cervical spine. magnetic resonance imaging should be the choice in the investigation of such cases.- - - - - - - - - - ranking = 0.023305293389525keywords = cord (Clic here for more details about this article) |
9/87. Lumbar intraspinal synovial cyst containing gas as a cause for low-back pain.OBJECTIVE: To discuss intraspinal synovial cysts caused by degenerative changes involving the posterior articular facets in the lumbar spine and to provide differential considerations for patients with low-back pain. Clinical Features: A 70-year-old man with low-back and gluteal pain demonstrating eventual progression of radiating pain into the left thigh, calf, ankle, and foot over a 5-month period. Radiographs of the lumbar spine revealed mild degenerative disk disease at L5-S1 with associated vacuum phenomena of the L5 disk. Degenerative osteophytes were present at L3, L4, and L5. Moderate posterior joint arthrosis was evident at L4-L5 and L5-S1. Computed tomography and magnetic resonance imaging studies revealed an intraspinal gas-containing synovial cyst at the left lateral aspect of the central canal at the level of the left L4-L5 facet articulation. Intervention and Outcome: The patient underwent surgical excision of the synovial cyst with remission of symptoms. CONCLUSION: Gas-containing intraspinal synovial cysts can be a significant finding and a causative factor in patients with low-back pain and pain radiating into the lower extremities. Both computed tomography and magnetic resonance imaging are important in defining intraspinal synovial cysts as a cause of back pain in patients whose low-back pain does not respond to chiropractic care.- - - - - - - - - - ranking = 1.1428571428571keywords = spinal (Clic here for more details about this article) |
10/87. Acute traumatic myelopathy secondary to a thoracic cyst in a professional football player.STUDY DESIGN: Case report of acute traumatic myelopathy secondary to thoracic synovial cyst in a professional football player. OBJECTIVE: To emphasize examination for myelopathy and describe the radiographic and magnetic resonance findings of a rare source of traumatic myelopathy. BACKGROUND: magnetic resonance imaging is the best initial evaluation for myelopathy in a traumatic setting. Heightened awareness during evaluation of a player involved in a traumatic incident allowed the diagnosis of potential cord damage and paralysis. methods: A subject with symptoms resulting from a direct blow to the back was evaluated for myelopathy, with diagnosis assisted by magnetic resonance imaging used to pinpoint the source of the disorder. RESULTS: The diagnosis allowed a surgical excision of the traumatic synovial cyst and full recovery of the injured football player. CONCLUSIONS: awareness during examination for myelopathy in an acutely injured athlete is imperative to prompt the clinician to order the proper diagnostic studies and thereby embark on a surgical correction of the problem.- - - - - - - - - - ranking = 24.284108116584keywords = myelopathy, cord (Clic here for more details about this article) |
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