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Cerebral edema is present with many common cerebral pathologies and risk factors for development of cerebral edema will depend on the cause. [1] The following were reliable predictors for development of early cerebral edema in ischemic strokes. [9] [10] Younger age; Higher severity of symptoms on the National Institutes of Health Stroke Scale
The dense MCA sign is a dense artery sign observed on non-contrast computed tomography (CT) of the brain and is an important early marker of acute ischemic stroke involving the middle cerebral artery territory. [1] It refers to an abnormally increased attenuation (hyperdensity) of the MCA, reflecting an intraluminal thrombus or embolus.
High-altitude cerebral edema (HACE) is a medical condition in which the brain swells with fluid because of the physiological effects of traveling to a high altitude. It generally appears in patients who have acute mountain sickness and involves disorientation, lethargy, and nausea among other symptoms.
An increase in pressure, most commonly due to head injury leading to intracranial hematoma or cerebral edema, can crush brain tissue, shift brain structures, contribute to hydrocephalus, cause brain herniation, and restrict blood supply to the brain. [13] It is a cause of reflex bradycardia. [14]
Clinical signs of cerebral edema, such as focal neurological deficits, papilledema [5] and decreased level of consciousness, if temporally associated with recent hemodialysis, suggest the diagnosis. A computed tomography of the head is typically done to rule-out other intracranial causes.
The white cerebellum sign, also known as reversal sign or dense cerebellum sign, is a radiological sign denoting the relatively white appearance of the cerebellum due to a generalized decrease in density of the supratentorial brain structures caused by extensive edema.
Lee's death was officially ruled the result of cerebral edema — swelling of the brain. While a normal human brain is about 3 pounds, Lee's was reportedly closer to 3½ pounds.
[1] [6] Up to 1% of children with DKA develop a complication known as cerebral edema. [2] Rates of cerebral edema in US children with DKA have risen from 0.4% in 2002 to 0.7% in 2012. [44] Between 2 and 5 out of 10 children who develop brain swelling will die as a result. [10]