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> Epidural (above dura, under skull) - arterial (middle meningeal artery), high trauma/acute pres, lens-shape on CT > Subdural (below dura, above arachnoid) - venous (venous plexus), low-force trauma/insidious (ex. worsening ha over days), crescent shape on CT > Subarachnoid (below arachnoid, above brain) - arterial (Circle of Willis), acute pres w thunderclap ha, goes into fissures & succi & sella on CT > Intraventricular (in the ventricles) > Intraparenchymal (in the meat of the brain)

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Increased ICP Symptoms (0 - 15) = Normal Ranges **Any patient that becomes acutely unconscious, regardless of the cause should be suspected of having ↑ ICP** Causes: · Mass lesion (tumor) · Cerebral edema: o Can lead to SIADH or DI o Do NOT lay flat (might have edema in brain) o Reaches peak in 2 – 4 days, then subsides unless there is underlying pathology (cancer, DM, etc.) o Treatment: § Mannitol § Hypertonic Saline § Surgery (depending on cause trauma v. brain tumor) · NOT done if…

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Signs of Increased Intracranial Pressure are opposite those of Shock [hemorrhage]. That’s a pretty easy way to remember it.

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Melanoma is the third most common primary neoplasm that metastasizes to the brain. MRI T1: typically hyperintense secondary to hemorrhage or melanin (as above) T2: typically hypointense T1 C+ (Gd): typically enhances in a peripheral rim pattern or a diffusely heterogeneous pattern. http://radiopaedia.org/articles/intracranial-metastatic-melanoma-2

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Etiological Factors and Evolution of Intracranial Hemorrhage in Term New-borns

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Jeffrey Hunter aka (Henry Herman McKinnies, Jr.) (1926 - 1969) American Film and TV Actor- Know for: "King of Kings" 1961, "The Searchers" 1956 - Passed at 42 - "Requiescant in Pace"

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