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subdural hematomas p. 532
child abuse sign p. 579
Subdural hemorrhage can be broken down. Sub means below, “dural” which refers to the outermost protective layer of the brain, which is called dura mater, and “hemorrhage” refers to bleeding. So, a subdural hemorrhage is when there’s bleeding below the dura mater.
A subdural hematoma is a type of hematoma where the blood gathers between the dura mater and the brain. It comes from the rupture of the bridging veins found within the subdural space, often due to head trauma, especially in the elderly, babies, and individuals that abuse alcohol.
Diagnosis requires brain imaging like a CT scan, which shows an acute subdural hemorrhage as a hyperdense blood collection, whereas a chronic subdural hemorrhage appears as a hypodense blood collection. It's also important to note that subdural hematomas cross suture lines and follow the contour of the brain forming a crescent shape, unlike epidural hematomas which don't cross suture lines. Treatment for a subdural hematoma includes surgery to remove the blood clot, medications to reduce swelling and pressure on the brain or observation.
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