1/14. Extracranial vertebral artery dissection causing cervical root lesion.The authors report an unusual manifestation of extracranial vertebral artery dissection (VAD), presenting with a predominantly motor radicular manifestation. Cervical magnetic resonance imaging (MRI) revealed the intramural hematoma in the dissected vessel wall, compressing mainly the segmental motor root and, to a lesser degree, the sensory ganglion. In the digital subtraction angiography (DSA), a circumscribed narrowing of the incriminated vessel was demonstrated. color-coded Duplex imaging (CDDI) revealed complete recanalization after a few days of anticoagulation treatment. Complete neurologic recovery was seen after 3 months. Considering the MRI data, the likely pathogenetic mechanism was compression of the nerve root by the intramural hematoma. The synopsis with similar cases in the literature points to the characteristic features, i.e., the association of neck pain with radicular motor deficit and the absence of degenerative disk disease. The respective syndrome should raise the suspicion of vertebral artery dissection, especially in young individuals.- - - - - - - - - - ranking = 1keywords = ganglion (Clic here for more details about this article) |
2/14. abducens nerve paresis as first symptom of trigeminal neurinoma. Report of two cases and review of the literature.Two cases of neurinoma of the Gasserian ganglion with abducens nerve paresis as the first symptom are described and 27 cases culled from the literature are reviewed. The anatomo-surgical and clinical-radiological features of this pathology were re-assessed in an attempt to identify the pathogenetic mechanism responsible for a trigeminal neurinoma manifesting with VI cranial nerve palsy.- - - - - - - - - - ranking = 1keywords = ganglion (Clic here for more details about this article) |
3/14. Posttraumatic isolated infarction in the territory of Heubner's and lenticulostriate arteries: case report.A 12 year old male had a secondarily generalized epileptic seizure and a subsequent right hemiparesis with fasciobrachial predominance after a closed head injury. His seizures responded to antiepileptic drug therapy immediately. Computerized tomographic scanning and magnetic resonance imaging showed an acute infarct of the head of the left caudate nucleus, indicating the isolated occlusion of the left recurrent artery of Heubner and lateral lenticulostriate arteries. Pathologies leading to vasculitis and embolism were also looked for, but no finding of associated systemic disease could be disclosed. We present this case since posttraumatic infarction in the territory of the deep perforators such as recurrent artery of Heubner and lateral lenticulostriate arteries are exceptionally rare conditions especially in this age group.- - - - - - - - - - ranking = 0.037373554657958keywords = nucleus (Clic here for more details about this article) |
4/14. A case of incomplete postganglionic cholinergic dysautonomia.Postganglionic cholinergic dysautonomia is a relatively uncommon disease that manifests as an acute and selective dysfunction of the parasympathetic and sympathetic sudomotor nervous system. Here, we present a 27-year-old woman who suffered from subacute onset of bladder paresis. The clinical and laboratory examinations revealed a selective parasympathetic dysfunction including dilated pupils and decreased tearing without an involvement of the sympathetic sudomotor system. From clinical and laboratory evidences, it is suggested that the tonic pupil and postganglionic cholinergic dysautonomia may not be a completely different disease entity but share the same pathogenesis, which is separated only by the severity or the extent of the disease. The patient was diagnosed as 'incomplete postganglionic cholinergic dysautonomia'.- - - - - - - - - - ranking = 7keywords = ganglion (Clic here for more details about this article) |
5/14. Zoster paresis.herpes zoster (HZ) is essentially a viral disease of the posterior root ganglia and sensory nerve fibers, which presents clinically with vesicular eruption of the skin, radicular pain and sensory changes in the distribution of the affected ganglion. However, motor involvement can be seen as well. If classic cutaneous lesions are present, HZ-related motor paresis is easily diagnosed. Otherwise, the diagnosis may be suspicious, especially if the weakness occurs before the cutaneous lesions have appeared, or weeks after they have subsided. We present a patient with HZ-related motor paresis due to radiculopathy in the cervical segments whose motor symptoms and signs appear as major clinical features.- - - - - - - - - - ranking = 1keywords = ganglion (Clic here for more details about this article) |
6/14. Deep peroneal nerve paresis in a runner caused by ganglion at capitulum peronei. Case report and review of the literature.Although lateral popliteal sciatic nerve damage is not one of the commonest diseases in the general population, it is quite frequent among athletes. Several physiopathologic mechanisms have been thought to bring about this damage in athletes. Soft tissue ganglions with neurological involvement of the lateral popliteal sciatic nerve or its terminal rami are in differential diagnosis with several lesions of this area, as direct or indirect trauma, subcutaneous rupture of anterior tibialis muscle and long peroneal muscle, disc hernia, intraspinal tumor, anterior tarsal tunnel syndrome, cysts, neurofibroma, baker's cyst, vascular claudication, stenosing or inflammatory pathology of 2(nd) motoneuron, antimicrobial agents for urinary tract infection (nitrofurnantoin). The authors report the case of a 34-year-old amateur athlete with a recent paralysis of the hallux extensor, paresis of the toe extensor and hyposthenia of the tibialis anterior. The patient had been suffering from episodes of lumbalgia for a long time. He was sent to us because neurological damage due to disc herniation was suspected. electromyography, sonography, and CT showed peripheral compression of the deep peroneal nerve caused by a mucous cyst at the capitulum peronei, a ''rare'' condition. The patient underwent surgery to excise the cyst, which led to the rapid resolution of the nerve deficit shown by clinical and electromyographical tests. A meticulous anamnesis and accurate objective examination, followed by specific tests (radiographs, sonography, and possibly CT scan) generally enable a correct diagnosis to be made. If diagnosis and therapy are carried out correctly, and without delay, symptoms quickly resolve and the nerve deficit progressively regresses.- - - - - - - - - - ranking = 5keywords = ganglion (Clic here for more details about this article) |
7/14. Symptomatic hematoma of cervical ligamentum flavum: case report.STUDY DESIGN: A case of symptomatic hematoma of cervical ligamentum flavum. OBJECTIVE: To report the first ligamentum flavum hematoma in the cervical spine and review the reported cases. SUMMARY OF BACKGROUND DATA: A herniated nucleus pulposis, spondylosis, epidural hematoma or abscess, neoplasm, or some pathology of the ligamentum flavum, such as hypertrophy, ossification, or calcification, are the most common causes of spinal cord and nerve root compression. A ligamentum flavum hematoma has also been reported as a cause of compression of the cauda equina and lumbar nerve roots but has never been found in the cervical spine. methods: A 72-year-old man presented with left upper arm pain and left hemiparesis following traditional massage therapy. Admission magnetic resonance images showed a posterior oval-shaped mass that was continuous with the ligamentum flavum at C3-C4 level. RESULTS: A C3-C4 laminectomy for decompression and resection of the lesion was performed. One year after surgery, the patient remained neurologically intact and symptom-free. CONCLUSIONS: hematoma of the ligamentum flavum occurring in the cervical spine has never been reported previously. Repeated trivial injury on a degenerative ligamentum flavum might be the leading predisposing factor. spine surgeons should be aware of a hematoma in the ligamentum flavum as a possible cause of spinal cord or root compression, especially in the mobile cervical and lumbar spine.- - - - - - - - - - ranking = 0.037373554657958keywords = nucleus (Clic here for more details about this article) |
8/14. Isolated continuous rhythmic involuntary tongue movements following a pontine infarct.Isolated involuntary tongue movements are rare and poorly understood. The anatomical substrate and pathogenesis underlying involuntary tongue movements remain elusive. We describe a patient who developed isolated continuous rhythmic involuntary tongue movements after pontine infarct without evidence of hypertrophy of inferior olivary nucleus on follow-up magnetic resonance image. We discuss the rhythmic involuntary tongue movements as a prototype of involuntary hyperkinetic movement released by a central pacemaker.- - - - - - - - - - ranking = 0.037373554657958keywords = nucleus (Clic here for more details about this article) |
9/14. CT perfusion imaging in the early diagnosis of acute stroke.early diagnosis of acute cerebral infarction is critical due to the time limit of thrombolytic treatment. Cerebral computed tomography (CT) perfusion imaging is a new technique, which appears to provide early diagnosis of major vessel occlusions in the brain. CT perfusion imaging also provides valuable information about the hemodynamic status of ischemic brain tissue. In this report, we present the CT perfusion findings in comparison to the non-contrast CT and diffusion-weighted (DW) magnetic resonance (MR) imaging findings in two cases of acute cerebral infarction. Non-contrast CT findings were non-specific in the first case and there was minimal hypoattenuation in the superior aspect of the lentiform nucleus in the second case. CT perfusion imaging demonstrated significant perfusion defects in the middle cerebral artery territory in both cases. DW-MR imaging confirmed acute infarctions, which were smaller than the perfusion defect areas in the CT perfusion imaging in both cases.- - - - - - - - - - ranking = 0.037373554657958keywords = nucleus (Clic here for more details about this article) |
10/14. Traumatic abducens nerve paresis in a child.Trauma is a frequent cause for abducens (sixth) nerve paresis in a child, usually attributed to injury along the nerve's course. An unusual focal lesion of the sixth nerve nucleus is described.- - - - - - - - - - ranking = 0.037373554657958keywords = nucleus (Clic here for more details about this article) |
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