Acute hearing loss can be secondary to a simple, common cause or can be what is considered a medical emergency. It is a circumstance that should be looked upon as serious until... Read more »
Acoustic neuromas (more properly called vestibular schwannomas) arise from the Schwann cell sheath of either the vestibular or the cochlear nerve. They account for four-fifths of cerebellopontine angle tumors (the remaining 20%... Read more »
Headaches may accompany a variety of conditions of the head or neck. Read more »
Acute vision loss may be caused by central retinal artery occlusion, central vein occlusion, temporal arteritis, optic neuritis, optic neuropathy, vitreous hemorrhage, retinal detachment, neovascular age-related macular degeneration, stroke, hysterical conversion reactions,... Read more »
When an area of the brain experiences a sudden loss of blood, the event is called a stroke or cerebrovascular accident. Accompanying this circumstance is a loss of neurologic function. Strokes are... Read more »
Retinal detachment is a situation where the inner layers of the retina separate from the from the underlying retinal pigment epithelium. This epithelium is called the choroid and is a vascular membrane... Read more »
Benign paroxysmal positional vertigo (BPPV) is an entity often confused with vestibular neuronitis (VN). It is, however, clinically and pathophysiologically distinct, and it should be relatively easy to distinguish between the two. Read more »
Migraine headaches are one of the primary causes of analgesic abuse. Neurogenic peptides, such as serotonin and dopamine, have been increasingly implicated in their origin. Apparently, these vasoactive neuropeptides stimulate an inflammatory... Read more »
Cervical radiculopathy describes mechanical nerve root compression or intense inflammation, i.e, chemical radiculitis, that affects nerve roots as they exit the spinal foramen. Loss of disc height through aging and age-related foraminal... Read more »
A transient ischemic attack (TIA) is a transient disruption of blood flow to an area of the brain. The event usually last only a few minutes. TIA symptoms occur suddenly and may... Read more »