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In uncal herniation, a common subtype of transtentorial herniation, the innermost part of the temporal lobe, the uncus, can be squeezed so much that it moves towards the tentorium and puts pressure on the brainstem, most notably the midbrain. [8] The tentorium is a structure within the skull formed by the dura mater of the meninges.
Kernohan's notch. Kernohan's notch is a cerebral peduncle indentation associated with some forms of transtentorial herniation (uncal herniation). [1][2] It is a secondary condition caused by a primary injury on the opposite hemisphere of the brain. [3] Kernohan's notch is an ipsilateral condition, in that a left-sided primary lesion (in which ...
Medical condition Subarachnoid hemorrhage Other names Subarachnoid haemorrhage CT scan of the brain showing subarachnoid hemorrhage as a white area in the center (marked by the arrow) and stretching into the sulci to either side Pronunciation / ˌ s ʌ b ə ˈ r æ k n ɔɪ d ˈ h ɛ m ər ɪ dʒ / Specialty Neurosurgery, Neurology Symptoms Severe headache of rapid onset, vomiting, decreased ...
Women who had high levels of all three measures were 1½ times more likely to experience a stroke and more than three times as likely to have coronary heart disease, the researchers found.. While ...
The study, led by Brigham and Women’s Hospital and Harvard Medical School, linked the virus to greater chances of "subjective cognitive decline," according to a Harvard press release.
Abnormal posturing. Traumatic brain injury, Stroke, Intracranial hemorrhage, Brain tumors, and Encephalopathy. Abnormal posturing is an involuntary flexion or extension of the arms and legs, indicating severe brain injury. It occurs when one set of muscles becomes incapacitated while the opposing set is not, and an external stimulus such as ...
She points to symptoms such as "hot flashes, mood swings, difficulty sleeping, vaginal bladder symptoms like vaginal dryness, pain with sex and more frequent UTIs."
Second-impact syndrome. Second-impact syndrome (SIS) occurs when the brain swells rapidly, and catastrophically, after a person has a second concussion before symptoms from an earlier one have subsided. This second blow may occur minutes, days, or weeks after an initial concussion, [1] and even the mildest grade of concussion can lead to second ...
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