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Today's Terms
Tinnitus Ear Ringing
Definition:
Together with other abnormal ear noises, ear ringing is medically called tinnitus. Buzzing, roaring, and pulsitile sounds are sometimes perceived when no sound is present in persons with tinnitus.
Cerebral edema
Definition:
Accumulation of excessive fluid in the substance of the brain. The brain is especially susceptible to injury from edema, because it is located within a confined space and cannot expand.
Basilar fracture
Definition:
A break in bone at the base of the skull. About a half of basilar fractures are caused by bicycle or motor vehicle accidents, about a quarter by falls, and a tenth by recreational activities, particularly by diving accidents.
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