Saturday, September 23, 2017

Q: How you can differentiate acute Sub-Dural-Hematoma (SDH) from subacute or chronic SDHs on CT scan of head?


On CT scan of head, acute SDH appears as a high-density crescentic collection across the hemispheric convexity. 

In contrast, subacute and chronic SDH appears as isodense or hypodense crescent-shaped lesions  that deform the surface of the brain.

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