1/97. 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 = compression (Clic here for more details about this article) |
2/97. 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 = 1keywords = compression (Clic here for more details about this article) |
3/97. 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 = 1keywords = compression (Clic here for more details about this article) |
4/97. synovial cyst of the proximal tibiofibular joint with peroneal nerve compression after total knee arthroplasty.Synovial or ganglion cysts of the proximal tibiofibular joint are less common than synovial cysts of the knee joint but may present in a similar manner and may be difficult to diagnose clinically. Although synovial cysts arising from the knee joint after prosthetic arthroplasty have already been described, we report a case in which a lateral knee mass compressing the peroneal nerve was found to be a synovial cyst arising from the tibiofibular joint.- - - - - - - - - - ranking = 4keywords = compression (Clic here for more details about this article) |
5/97. Case report ganglion cysts of the bilateral cruciate ligaments.ganglion cysts originating from the cruciate ligaments have been reported rarely. A 38-year-old woman developed symptoms of knee pain with 10 degrees loss of knee extension. Preoperative magnetic resonance imaging showed a well-demarcated cystic mass surrounding the posterior cruciate ligament so clearly that further examination was not recommended. Because examination under anesthesia confirmed full extension of the knee, we presumed that pain produced by compression caused the diminished extension, and that mechanical block was not the reason. During arthroscopic examination, a mass was impinged between the anterior cruciate ligament and the intercondylar notch when extension of the knee was attempted. The mass was resected and immediate improvement was noted. The patient had experienced the same episode in the contralateral knee and removal of a ganglion cyst on the cruciate ligament 10 years ago. At the latest follow-up she was completely symptom free in both knees without any sign of recurrence.- - - - - - - - - - ranking = 1keywords = compression (Clic here for more details about this article) |
6/97. ulnar nerve compression at the wrist by a synovial cyst successfully treated with percutaneous puncture and corticosteroid injection.A case of ulnar nerve palsy due to a conduction block in the deep motor branch at the wrist is reported. The cause was a rapidly growing synovial cyst. ultrasonography and computed tomography were performed to determine the exact location of the cyst, which was punctured and injected with corticosteroid. Function promptly returned to normal after this procedure.- - - - - - - - - - ranking = 4keywords = compression (Clic here for more details about this article) |
7/97. L5 radicular pain related to a cystic lesion of the posterior longitudinal ligament.A 35-year-old man with a long history of left L5 radicular pain was found to have an intraspinal cystic lesion causing radicular compression. magnetic resonance imaging demonstrated a round lesion situated in the anterior epidural space, with uniform high signal intensity on T2-weighted sequences characteristic of a cystic lesion. During surgery a liquid-containing cyst originating from the posterior longitudinal ligament was punctured and resected. The histologic aspect was that of a ganglion cyst without synovial layers. The radiologic differential diagnoses are discussed.- - - - - - - - - - ranking = 1keywords = compression (Clic here for more details about this article) |
8/97. synovial cyst of lumbar spine presenting as disc disease: a case report and review of literature.Synovial cysts most commonly involve the joints of the extremities. These cysts are rarely found in the spinal canal or the vertebral facet joints. However, if manifested as such, they can pose serious diagnostic and therapeutic problems due to the presentation, which most often resembles nerve root or spinal cord compression. Acute low back pain and radiculopathy are often attributed to a herniated nucleus pulposus. This paper presents a case of synovial cyst in a 62-year-old woman with a 2-year history of refractory low back pain with distal radiation. A facet joint cyst was encountered upon neuroimaging, resulting in excision of the cyst. In this report, we discuss the differential diagnosis of synovial cysts, the role of computed tomography and magnetic resonance imaging in the diagnosis, and treatment options for this uncommon entity.- - - - - - - - - - ranking = 1keywords = compression (Clic here for more details about this article) |
9/97. Cysts of the atlantoaxial joint: excellent long-term outcome after posterolateral surgical decompression. Report of two cases.Articular cysts of the atlantoaxial joint are infrequently described and probably an underreported cause of upper cervical spinal cord compression. The authors report on two patients with cysts located posteriorly of the dens in whom a C-1 and partial C-2 hemilaminectomy with subtotal resection of the cyst provided adequate and stable decompression 1 year postoperatively. The clinical and magnetic resonance imaging features and the surgical approach are discussed after a review of the literature.- - - - - - - - - - ranking = 6keywords = compression (Clic here for more details about this article) |
10/97. synovial cyst at the intervertebral foramina causing lumbar radiculopathy.OBJECTIVE: To determine the presence of intraforaminal synovial cysts resulting in nerve root compression. methods: A 26 year old man presenting with left leg pain was admitted. He had no motor, sensory, or reflex changes. magnetic resonance imaging (MRI) and MRI-myelography showed an intra and extra foraminal, extradural, cystic lesion at L4 vertebra on the left side. RESULTS: At surgery there was a cystic mass pressing on the nerve root, and no connection or communication with the dural structures could be found. CONCLUSION: Synovial cysts are uncommon extradural degenerative lesions. Intraspinal synovial cysts occur most often at the L4-5 level, but they have been reported in all areas of the spine except the intraforaminal region and the sacrum.- - - - - - - - - - ranking = 1keywords = compression (Clic here for more details about this article) |
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