Diagram - intracranial hemorrhage

Case contributed by Matt Skalski
Diagnosis not applicable


Head trauma

Patient Data

Age: Not applicable

A parietal extradural hemorrhage is depicted, extending from, but not crossing, the sagittal and squamous sutures. There is an associated cranial fracture depicted next to the hemorrhage as well. 

The hematoma is classically lentiform shaped.


A parietal subdural hemorrhage is depicted, located between the arachnoid mater and meningeal (visceral) layer of the dura. Also depicted is a ruptured bridging cortical vein secondary to a non-fracturing cranial trauma, leading to the hemorrhage in this location. Note that the hemorrhage is not limited by the sutural attachment of the dura, as it is subdural.  


A subarachnoid hemorrhage secondary to rupture of a berry aneurysm in the lateral base of the calvarium is depicted. Note that the blood is not confined by sutures (extradural) and is not contained between dural layers (subdural). 

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