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Query: UMLS:C0004134 (ataxia)
 15,886 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We reported a case of arachnoid cyst in the craniovertebral junction which was extremely rare. A 36-year-old man presented truncal ataxia and dysesthesia in the right upper extremity. CT and MR images revealed a large cyst in the craniovertebral junction. As for findings of MR images, cystic lesion showed similar intensity as cerebrospinal fluid. Intradural arachnoid cyst with thickened dura was opened to communicate with subarachnoid space. Fluid in the cyst was watery clear. Histological finding of the surgical specimen was arachnoid cyst without inflammatory changes. Arachnoid cyst in the craniovertebral junction is discussed with literature.
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PMID:[A case report of an arachnoid cyst in the craniovertebral junction]. 766 5

Arachnoid cysts are infra-arachnoidal cerebrospinal fluid collections that are usually asymptomatic. However, they can become acutely symptomatic because of haemorrhage and cyst enlargement, which may result from minor head trauma. The range of symptoms is wide and many are "soft" signs. Diagnosis is important as cysts causing mass effect require surgery. A case is reported of a child presenting with localised headaches after minor head trauma. Computed tomography demonstrated an arachnoid cyst with evidence of haemorrhage, which required surgical intervention. Other cases of arachnoid cyst presenting to our hospital or reported in the literature are reviewed with respect to presenting symptoms and signs. Localised headaches, behavioural or cognitive changes and ataxia are more commonly associated with this disorder than nausea, vomiting, visual disturbances or seizures. This range of symptomatology following minor head trauma may warrant computed tomography when other criteria for this investigation are not met.
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PMID:Haemorrhage into an arachnoid cyst: a serious complication of minor head trauma. 1210 Nov 65

Arachnoid cysts of the quadrigeminal cisterna are infratentorial cystic lesions located between the collicular plate and the incisural notch of the tentorium. We report here five cases of quadrigeminal cisterna arachnoid cysts in dogs. In this study, four of the five dogs were male, three showed signs of seizures, and one dog was over 10 years of age. In two of the dogs, cysts were discovered incidentally. In previous reports, most intracranial arachnoid cysts were located in the quadrigeminal cisterna. The presence of cysts should be considered in toy breeds presenting for seizures or ataxia.
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PMID:Quadrigeminal cisterna arachnoid cyst diagnosed by MRI in five dogs. 1508 Apr 55

Congenital spinal intradural arachnoid cyst associated with intrathoracic meningocele is very rare. We report a case in a 9-year-old Chinese boy who presented with a two-week history of progressive paraparesis and gait ataxia. Magnetic resonance imaging revealed that a dorsal intradural extramedullary cystic lesion extended from T1 to T5 and compressed the spinal cord. A left lateral intrathoracic meningocele pouch was found incidentally at the level of T1. The arachnoid cyst as well as meningocele was removed and the spinal cord compression was relieved. Arachnoid cyst was confirmed by histological examination. The patient recovered well postoperatively. This is the second report of such a case in the world according to the available literature. The take-home message for our case is that the surgical approach should be individualized, depending on the size and location.
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PMID:Congenital spinal intradural arachnoid cyst associated with intrathoracic meningocele in a child. 2050 73

Arachnoid cysts are benign developmental collections of cerebrospinal fluid (CSF). They constitute approximately 1% of intracranial masses. The cerebellopontine angle (CPA) arachnoid cysts are rare and often asymptomatic. The onset of symptoms and signs is usually due to the compression of the brain, cranial nerves and obstruction of CSF circulation. The major clinical symptoms for CPA arachnoid cysts were reported as headache, ataxia and 8(th) cranial nerve palsy. We report a patient with a CPA arachnoid cyst. He presented with cranial nerve palsies and mirror movements found in upper extremities. We postulated that CPA arachnoid cyst compressing the brain stem and the pyramidal decussation may lead to mirror movements. We conclude that mirror movements can be associated with CPA arachnoid cyst.
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PMID:Cerebellopontine angle arachnoid cyst associated with mirror movements. 2696 47

Arachnoid cysts are intracranial pathologies in the space between the pia mater and the dura mater of the brain and cerebellum. Arachnoid cysts are derived from the arachnoidea mater, which while yielding to germination or splitting creates a space filled with liquid with a composition similar to cerebrospinal fluid. The aim of the study is to present possible clinical symptoms and radiological presentation of intracranial arachnoid cysts. The symptoms of intracranial arachnoid cysts are dependent on its size and location. Small cysts are often asymptomatic, while reaching a large size they have the effect of weight, which can lead to oppression and displacement of neurovascular structures, increased intracranial pressure, and therefore such cysts may be the reason for the occurrence of neurological symptoms. Increasing headaches, dizziness, nausea with or without vomiting, stiff neck may even feign subarachnoid hemorrhage (SAH). In neuroimaging arachnoid cysts account for 1-2% of all intracranial pathologic masses. The most common location of arachnoid cysts is down the middle and rear of the skull in natural bodies of cerebrospinal fluid. Arachnoid cysts have a high rate of change. They can undergo spontaneous growth as well as the reduction or disappearance. Headaches, nausea or vomiting, worsening of mood, mental status changes, ataxia, seizures, hearing loss may be symptoms of serious intracranial pathology requiring diagnosis based on neuroimaging.
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PMID:[Intracranial arachnoid cysts in the clinical and radiological aspect]. 2771 44

Arachnoid cysts are intracranial pathologies in the space between the pia mater and the dura mater of the brain and cerebellum. Arachnoid cysts are derived from the arachnoidea mater, which while yielding to germination or splitting creates a space filled with liquid with a composition similar to cerebrospinal fluid. The aim of the study is to present possible clinical symptoms and radiological presentation of intracranial arachnoid cysts. The symptoms of intracranial arachnoid cysts are dependent on its size and location. Small cysts are often asymptomatic, while reaching a large size they have the effect of weight, which can lead to oppression and displacement of neurovascular structures, increased intracranial pressure, and therefore such cysts may be the reason for the occurrence of neurological symptoms. Increasing headaches, dizziness, nausea with or without vomiting, stiff neck may even feign subarachnoid hemorrhage (SAH). In neuroimaging arachnoid cysts account for 1-2% of all intracranial pathologic masses. The most common location of arachnoid cysts is down the middle and rear of the skull in natural bodies of cerebrospinal fluid. Arachnoid cysts have a high rate of change. They can undergo spontaneous growth as well as the reduction or disappearance. Headaches, nausea or vomiting, worsening of mood, mental status changes, ataxia, seizures, hearing loss may be symptoms of serious intracranial pathology requiring diagnosis based on neuroimaging.
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PMID:[Intracranial arachnoid cysts in the clinical and radiological aspect]. 2847 25