1/107. 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 = nerve (Clic here for more details about this article) |
2/107. The fourth-compartment syndrome: its anatomical basis and clinical cases.We propose a new term, the "fourth-compartment syndrome" to describe chronic dorsal wrist pain of the fourth compartment. Five main causes responsible for this syndrome are thought to be as follows: 1. Ganglion involvement, including an occult ganglion; 2. Extensor digitorum brevis manus muscle; 3. Abnormal extensor indicis muscle; 4. Tenosynovialitis; 5. Anomaly or deformity of carpal bones. Should the above mentioned conditions occur in the fourth compartment, pressure within the fourth compartment increases, ultimately compressing the posterior interosseous nerve directly or indirectly. Anatomical studies of the fourth compartment of the wrist and the posterior interosseous nerve are presented and the fourth-compartment syndrome is summarized with twelve clinical cases (six cases of occult ganglions, two cases of extensor digitorum brevis manus, two cases of tenosynovialitis, one case of abnormal extensor indicis muscle, and one case of carpal bossing).- - - - - - - - - - ranking = 2keywords = nerve (Clic here for more details about this article) |
3/107. Paralabral cyst: an unusual cause of quadrilateral space syndrome.A paralabral cyst arising from a detached inferior glenoid labral tear was shown by magnetic resonance imaging (MRI) to dissect into the quadrilateral space, resulting in a compressive neuropathy of the axillary nerve. Three consecutive MRI examinations were performed over a 5-year period in a 47-year-old man with a long history of worsening shoulder pain. The MRI examinations revealed a slowly enlarging paralabral cyst extending into the quadrilateral space with progressive atrophy of the teres minor muscle.- - - - - - - - - - ranking = 1keywords = nerve (Clic here for more details about this article) |
4/107. 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 = 5keywords = nerve (Clic here for more details about this article) |
5/107. Recurrent intraneural ganglion cyst of the tibial nerve. Case report.Different theories have evolved to explain the pathogenesis and the cell of origin of intraneural ganglion cysts. Reportedly only three cases of intraneural ganglion of the tibial nerve have been located within the popliteal fossa, and all of these were thought to arise within the nerve. The authors report a case of a recurrent tibial intraneural ganglion in which a connection to the proximal tibiofibular joint was demonstrated on magnetic resonance (MR) images and at surgery. Surgical ligation of the articular branch and evacuation of the cyst led to symptomatic relief, and an MR image obtained 1 year after surgery documented no recurrence. This case reinforces the fact that surgeons need to consider and search for an articular connection in all cases of intraneural ganglia, especially in those that have recurred.- - - - - - - - - - ranking = 6keywords = nerve (Clic here for more details about this article) |
6/107. Compression neuropathy of the superficial branch of the radial nerve. case reports.We present two cases of hypoaesthesia over the dorsal radial aspect of the hand with an associated painful mass in the wrist. At operation a dorsal wrist ganglion was compressing the superficial branch of the radial nerve at the anatomical snuff-box. After removal of the ganglion the hypoaesthesia was relieved.- - - - - - - - - - ranking = 5keywords = nerve (Clic here for more details about this article) |
7/107. 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 = 5keywords = nerve (Clic here for more details about this article) |
8/107. 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 = nerve (Clic here for more details about this article) |
9/107. Sonographic imaging of a spinoglenoid cyst.Spinoglenoid cysts can be the reason for suprascapular nerve entrapment syndrome resulting an isolated atrophy of the infraspinatus muscle. The syndrome usually presents painless and is frequently observed in professional volleyball players. The incidence of these cysts in volleyballplayers is still unknown. diagnosis is made by neurological examination using electromyography and magnetic resonance imaging. Our case shows the potential of ultrasound as a possible imaging method of ganglion cysts that could be used as a screening method to prevent suprascapular neuropathy.- - - - - - - - - - ranking = 1keywords = nerve (Clic here for more details about this article) |
10/107. 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 = 2keywords = nerve (Clic here for more details about this article) |
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