Template:Epidural vs. subdural hematoma
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| Hematoma type | Epidural | Subdural |
|---|---|---|
| Location | Between the skull and the inner meningeal layer of the dura mater or between outer endosteal and inner meningeal layer of dura mater | Between the meningeal layers of dura mater and the Arachnoid mater |
| Involved vessel | Temperoparietal locus (most likely) – Middle meningeal artery Frontal locus – anterior ethmoidal artery Occipital locus – transverse or sigmoid sinuses Vertex locus – superior sagittal sinus |
Bridging veins |
| Symptoms (depending on the severity)[1] | Lucid interval followed by unconsciousness | Gradually increasing headache and confusion |
| CT scan appearance | Biconvex lens | Crescent-shaped |