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Subdural Hematoma (SDH)

Last Updated: October 1, 2018

Figure 1: Subdural hematomas can become quite large as on this head CT. Even though a component of this hematoma has a convex-medial appearance, the other characteristics (crossing the sutures and wrapping around the parenchyma) are define this as a subdural rather than epidural hemorrhage. This patient also has significant midline shift indicating subfalcine herniation. The right lateral ventricle is dilated, representing hydrocephalus, obstructed at the foramen of Monro.

 

Figure 2: This axial CT image through the brain demonstrates a dense subdural hematoma superficial to the left frontal lobe, crossing the expected location of the coronal suture (anterior midline arrows). Thin subdural blood is also present along the posterior falx (posterior midline arrow). Subarachnoid hemorrha...