Search results
Results From The WOW.Com Content Network
Bruns nystagmus is an unusual type of bilateral nystagmus most commonly occurring in patients with cerebellopontine angle tumours.It is caused by the combination of slow, large amplitude nystagmus (gaze paretic nystagmus) when looking towards the side of the lesion, and rapid, small amplitude nystagmus (vestibular nystagmus) when looking away from the side of the lesion. [1]
A vestibular schwannoma (VS), also called acoustic neuroma, is a benign tumor that develops on the vestibulocochlear nerve that passes from the inner ear to the brain. The tumor originates when Schwann cells that form the insulating myelin sheath on the nerve malfunction. Normally, Schwann cells function beneficially to protect the nerves which ...
The most common cerebellopontine angle (CPA) tumor is a vestibular schwannoma affecting cranial nerve VIII (80%), followed by meningioma (10%). The cranial nerves affected are (from most common to least common) : VIII (cochlear component), VIII (vestibular component), V Acoustic neuroma/vestibular schwannoma
Similar to the sensory organization test, the visual pathway would then be removed by closing the eyes. If the proprioceptive and vestibular pathways are intact, balance will be maintained. But if proprioception is defective, two of the sensory inputs will be absent and the patient will sway then fall. Similar to the Romberg Test, the patient ...
Micrograph of a schwannoma, a tumor seen in neurofibromatosis type II. HPS stain. Schwannoma of the N. Vestibularis Meningiomas in a person with NFII. The so-called acoustic neuroma of NF2 is in fact a schwannoma of the nervus vestibularis, or vestibular schwannoma. The misnomer of acoustic neuroma is still often used.
Acoustic neuroma (vestibular schwannoma) – benign neoplasm of Schwann cells affecting the vestibulocochlear nerve; Meningioma – benign tumour of the pia and arachnoid mater; Ménière's disease – causes sensorineural hearing loss in the low frequency range (125 Hz to 1000 Hz).
Dyspraxia: poor motor planning (more related to the vestibular system and proprioception) Poor bilateral integration: inadequate use of both sides of the body simultaneously; Tactile defensiveness: negative reaction to tactile stimuli; Visual perceptual deficits: poor form and space perception and visual motor functions
radiotherapy or surgical excision of vestibular schwannoma or acoustic neuroma, though, in most cases, it is unlikely that hearing will be preserved; Stapedectomy and stapedotomy for otosclerosis - replacement or reshaping of the stapes bone of the middle ear can restore hearing in cases of conductive hearing loss