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Arachnoid Cyst (arachnoid + cyst)
Selected AbstractsStatus Epilepticus Presenting in a Patient with Neurosyphilis and a Previously Asymptomatic Arachnoid CystEPILEPSIA, Issue 7 2002Jeffrey D. Jirsch No abstract is available for this article. [source] A Case With Prepontine (Clival) Arachnoid Cyst Manifested as Trigeminal NeuralgiaHEADACHE, Issue 10 2008Emine Genc MD Most cases of "idiopathic" trigeminal neuralgia are thought to originate from vascular compression of the trigeminal root entry zone. In this case, we describe a young man presenting with the symptoms of trigeminal neuralgia associated with a prepontine (clival) arachnoid cyst. [source] Intracranial Arachnoid Cysts: Are They Clinically Significant?JOURNAL OF VETERINARY INTERNAL MEDICINE, Issue 5 2005C. Duque No abstract is available for this article. [source] Retrospective Analysis of Spinal Arachnoid Cysts in 14 DogsJOURNAL OF VETERINARY INTERNAL MEDICINE, Issue 6 2002Helena Rylander Spinal cord dysfunction secondary to spinal arachnoid cysts (SACs) has been reported previously in dogs. This retrospective study reviews the clinical signs, radiographic findings, and outcome after surgical resection of SACs in 14 dogs. Plain vertebral column radiographs and myelography were done in all dogs. Computed tomography (CT) was done in 7 dogs and magnetic resonance (MR) imaging in 3 dogs. Affected dogs were between 1 and 12 years of age, and 8 of 14 were Rottweilers. Abnormalities detected on neurological examination depended on the location of the SAC. Five dogs had bilobed or multiple SACs. SACs were located in the cervical vertebral column in 11 dogs and in the thoracic vertebral column in 4 dogs. All dogs had dorsally or dorsolaterally located SACs. Two dogs also had additional ventrally located SACs. Spinal cord compression secondary to intervertebral disc extrusion or protrusion was demonstrated at the site of the SACs in 2 dogs. Surgical resection of the SACs was completed in all dogs. Eleven dogs were available for follow-up. Five weeks postoperatively, 7 dogs improved in neurological function, with some residual ataxia and paresis in 6 of these dogs. Neurological function had deteriorated in 4 dogs. It was concluded from this study that Rottweilers have a higher incidence of SACs than other breeds of dog. Furthermore, bilobed or multiple SACs can occur commonly, and myelography effectively localized SACs in dogs. Surgical resection of SACs resulted in improvement in neurological function in the majority of treated dogs. [source] Arachnoid cyst causing an optic neuropathy in neurofibromatosis 1ACTA OPHTHALMOLOGICA, Issue 4 2010Marianne Wegener No abstract is available for this article. [source] Quadrigeminal cisterna arachnoid cyst diagnosed by MRI in five dogsAUSTRALIAN VETERINARY JOURNAL, Issue 6 2003M KITAGAWA Arachnoid cysts of the quadrigeminal cisterna are infratento-rial 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. [source] A Case With Prepontine (Clival) Arachnoid Cyst Manifested as Trigeminal NeuralgiaHEADACHE, Issue 10 2008Emine Genc MD Most cases of "idiopathic" trigeminal neuralgia are thought to originate from vascular compression of the trigeminal root entry zone. In this case, we describe a young man presenting with the symptoms of trigeminal neuralgia associated with a prepontine (clival) arachnoid cyst. [source] Prenatal diagnosis of fetal arachnoid cyst of the quadrigeminal cistern in ultrasonography and MRIPRENATAL DIAGNOSIS, Issue 11 2009Kazufumi Haino No abstract is available for this article. [source] CASE REPORT Giant congenital melanocytic naevus and symptomatic thoracic arachnoid cystAUSTRALASIAN JOURNAL OF DERMATOLOGY, Issue 2 2001Gary Holmes SUMMARY A 43-year-old female with multiple congenital naevi presented with a 5-year history of right upper quadrant pain. Magnetic resonance imaging demonstrated a large epidural thoracic arachnoid cyst. This case highlights the need to consider that the management of patients with giant congenital melanocytic naevus is variable depending on the age of the patient, the location of lesions and the presence of complications such as neurocutaneous melanosis. The value of magnetic resonance scanning as a screening device is discussed. [source] Acquired arachnoid cyst in a catAUSTRALIAN VETERINARY JOURNAL, Issue 7 2009T Sugiyama A 5-year-old Birman cat presented with paraparesis associated with a fracture of the third thoracic vertebra and was managed conservatively. Voluntary function was regained over the next 6 months, but the cat was referred 4 years after the trauma because of recurrence of hindlimb paresis and ataxia. Magnetic resonance imaging (MRI) showed a spinal arachnoid cyst at the level of the fourth thoracic vertebra, which was treated surgically by dorsal laminectomy and durectomy, and hindlimb function subsequently recovered. The cat re-presented 4 years later for recurrent hindlimb paresis. Myelography and computed tomography,myelography (CT-M) showed dorsolateral pooling of cerebrospinal fluid (CSF) at the previous laminectomy site. The neurological signs after the second surgery improved, but not as much as after the first surgery and the cat remained ataxic with moderate paresis. Seven months later repeat CT-M revealed an atrophic spinal cord, but negligible pooling of CSF at the previous site of the arachnoid cyst. The cat could walk, but was being treated for self-induced trauma of the left hindlimb that was thought to be related to paraesthesia. The neurological signs gradually deteriorated over 3 months and the cat was euthanased. [source] Quadrigeminal cisterna arachnoid cyst diagnosed by MRI in five dogsAUSTRALIAN VETERINARY JOURNAL, Issue 6 2003M KITAGAWA Arachnoid cysts of the quadrigeminal cisterna are infratento-rial 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. [source] Retrospective Analysis of Spinal Arachnoid Cysts in 14 DogsJOURNAL OF VETERINARY INTERNAL MEDICINE, Issue 6 2002Helena Rylander Spinal cord dysfunction secondary to spinal arachnoid cysts (SACs) has been reported previously in dogs. This retrospective study reviews the clinical signs, radiographic findings, and outcome after surgical resection of SACs in 14 dogs. Plain vertebral column radiographs and myelography were done in all dogs. Computed tomography (CT) was done in 7 dogs and magnetic resonance (MR) imaging in 3 dogs. Affected dogs were between 1 and 12 years of age, and 8 of 14 were Rottweilers. Abnormalities detected on neurological examination depended on the location of the SAC. Five dogs had bilobed or multiple SACs. SACs were located in the cervical vertebral column in 11 dogs and in the thoracic vertebral column in 4 dogs. All dogs had dorsally or dorsolaterally located SACs. Two dogs also had additional ventrally located SACs. Spinal cord compression secondary to intervertebral disc extrusion or protrusion was demonstrated at the site of the SACs in 2 dogs. Surgical resection of the SACs was completed in all dogs. Eleven dogs were available for follow-up. Five weeks postoperatively, 7 dogs improved in neurological function, with some residual ataxia and paresis in 6 of these dogs. Neurological function had deteriorated in 4 dogs. It was concluded from this study that Rottweilers have a higher incidence of SACs than other breeds of dog. Furthermore, bilobed or multiple SACs can occur commonly, and myelography effectively localized SACs in dogs. Surgical resection of SACs resulted in improvement in neurological function in the majority of treated dogs. [source] Benign cysts in the central nervous system: Neuropathological observations of the cyst wallsNEUROPATHOLOGY, Issue 1 2004Asao Hirano A diverse variety of benign cysts exist in the CNS. Advances in diagnostic radiology have facilitated diagnoses and surgical intervention in many patients with CNS cysts. However, a fundamental understanding of the pathological features of these lesions is clinically vital. From an etiological point of view, the cysts can be divided into two groups. The first includes lesions that arise from within the CNS and may be static structures such as cavities arising from infarcts and other destructive processes while other lesions such as arachnoid cysts, ependymal cysts, cystic hemangioblastoma, cystic cerebellar astrocytoma and infectious processes, are progressive. The second group of cysts arise from the intrusion of non-nervous system tissue into the neuroaxis and are usually midline. They are frequently expanding congenital lesions although some become symptomatic only in adults. Examples include teratomas, dermoid cysts, epidermoid cysts, craniopharyngiomas, Rathke's cleft cysts, and other epithelial cysts presumably derived from the upper respiratory or intestinal tract. Chick embryos exposed to lead have been used as a model of cyst formation. [source] Quadrigeminal cisterna arachnoid cyst diagnosed by MRI in five dogsAUSTRALIAN VETERINARY JOURNAL, Issue 6 2003M KITAGAWA Arachnoid cysts of the quadrigeminal cisterna are infratento-rial 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. [source] Bobble-head doll syndrome: some atypical features with a new lesion and review of the literatureACTA NEUROLOGICA SCANDINAVICA, Issue 3 2003K. B. Bhattacharyya Bobble-head doll syndrome is a rare and unique movement disorder encountered in children. It is characterized by continuous or episodic involuntary forward and backward and side to side movement of the head at the frequency of 2,3 Hz. Neuroimaging in most of the cases reveals third ventricular tumors, suprasellar arachnoid cysts, aqueductal stenosis and other lesions in the region of the third ventricle along with communicating hydrocephalus. In most of the circumstances, the problem starts in the first decade of life and diversion of cerebrospinal fluid by shunt operation is very often accompanied by dramatic improvement. We report one case where bobbing of the head started at around 12 years of age. Additionally, there was evidence of partial left abducens nerve palsy, tremor in the outstretched hands, difficulty in finger-nose test and tandem walking, hyperreflexia and extensor plantar response. He was unconscious on two occasions and there was evidence of gross hydrocephalus along with a thin membranous web, running transversely across the lower part of the aqueduct of Sylvius without any cerebrospinal fluid flow void. Ventriculo-peritoneal shunt abolished the abnormal movements. We propose that the aqueductal web was the offending agent for the pathogenesis of bobble-head doll syndrome in our case and this lesion has not been identified in the cases reported so far. Relevant literature in this regard has also been reviewed. [source] | ||||||||||||||||||||||