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  2. Reversible cerebral vasoconstriction syndrome - Wikipedia

    en.wikipedia.org/wiki/Reversible_cerebral...

    Reversible cerebral vasoconstriction syndrome (RCVS, sometimes called Call-Fleming syndrome) is a disease characterized by a weeks-long course of thunderclap headaches, sometimes focal neurologic signs, and occasionally seizures. [1] Symptoms are thought to arise from transient abnormalities in the blood vessels of the brain. [1]

  3. RCVS - Wikipedia

    en.wikipedia.org/wiki/RCVS

    RCVS may refer to: Royal College of Veterinary Surgeons; Reversible cerebral vasoconstriction syndrome This page was last edited on 29 ...

  4. Posterior reversible encephalopathy syndrome - Wikipedia

    en.wikipedia.org/wiki/Posterior_reversible...

    In many cases there is evidence of constriction of the blood vessels (if angiography is performed), suggesting a possible overlap with reversible cerebral vasoconstriction syndrome (RCVS). Diffusion MRI may be used to identify areas of cytotoxic edema caused by poor blood flow (ischemia) but it is not clear if this prognostically relevant.

  5. Cerebral vasculitis - Wikipedia

    en.wikipedia.org/wiki/Cerebral_vasculitis

    High resolution MRI may show hyperenhancement of the blood vessel walls in primary CNS vasculitis and may help to distinguish the lesions form atherosclerotic plaques or reversible cerebral vasoconstriction syndrome which have similar morphology on angiography. MRI usually also shows multiple infarcts, enhancement of the leptomeninges (the ...

  6. Vasospasm - Wikipedia

    en.wikipedia.org/wiki/Vasospasm

    Vasospasm refers to a condition in which an arterial spasm leads to vasoconstriction. This can lead to tissue ischemia (insufficient blood flow) and tissue death . Along with physical resistance, vasospasm is a main cause of ischemia. Like physical resistance, vasospasms can occur due to atherosclerosis.

  7. Chronic cerebrospinal venous insufficiency controversy

    en.wikipedia.org/wiki/Chronic_cerebrospinal...

    Zamboni and colleagues claimed that in MS patients diagnosed with CCSVI, the azygos and IJV veins are stenotic (abnormally narrowed) in around 90% of cases. Zamboni theorized that malformed blood vessels cause increased deposition of iron in the brain, which in turn triggers autoimmunity and degeneration of the nerve's myelin sheath.

  8. Cerebral edema - Wikipedia

    en.wikipedia.org/wiki/Cerebral_edema

    Posterior reversible encephalopathy syndrome (PRES) is a rare clinical disease characterized by cerebral edema. [12] The exact pathophysiology , or cause, of the syndrome is still debated but is hypothesized to be related to the disruption of the blood-brain barrier. [ 12 ]

  9. Cerebral vasospasm - Wikipedia

    en.wikipedia.org/wiki/Cerebral_vasospasm

    Cerebral vasospasm is the prolonged, intense vasoconstriction of the larger conducting arteries in the subarachnoid space which is initially surrounded by a clot.Significant narrowing of the blood vessels in the brain develops gradually over the first few days after the aneurysmal rupture.