Extradural hemorrhage (venous) | 合法醫療器材資訊網

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Venous extradural hemorrhages are a relatively uncommon subtype of extradural[1] hemorrhages[2], differing from arterial extradural hemorrhages not only in etiology, but also location and prognosis. 

They occur as a result of damage to the dural venous sinuses[3] and often result in the displacement of the sinus away from the underlying bone. 

For a general discussion, including epidemiology, clinical presentation, pathophysiology and general imaging appearances, please refer to the article on extradural hemorrhage.[4] 

Three locations are characteristic of venous extradural hemorrhage:

Extradural hemorrhages located at the vertex are usually due to diastasis +/- fracture involving the superior sagittal sinus. ...