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The middle meningeal artery is the largest of the three (paired) arteries that supply the meninges, the others being the anterior meningeal artery and the posterior meningeal artery. The anterior branch of the middle meningeal artery runs beneath the pterion. It is vulnerable to injury at this point, where the skull is thin. Rupture of the ...
The cause is typically a head injury that results in a break of the temporal bone and bleeding from the middle meningeal artery. [4] Occasionally it can occur as a result of a bleeding disorder or blood vessel malformation. [1] Diagnosis is typically by a CT scan or MRI scan. [1]
The anterior division of the middle meningeal artery runs underneath the pterion. [4] Consequently, a traumatic blow to the pterion may rupture the middle meningeal artery causing an epidural haematoma. The pterion may also be fractured indirectly by blows to the top or back of the head that place sufficient force on the skull to fracture the ...
It may result from laceration of an artery, most commonly the middle meningeal artery. This is a very dangerous type of injury because the bleed is from a high-pressure system and deadly increases in intracranial pressure can result rapidly. However, it is the least common type of meningeal bleeding and is seen in 1% to 3% cases of head injury.
Arterial injuries results in more rapidly growing hematoma when compared to venous injuries. [3] At the pterion region, middle meningeal artery is most commonly affected. When fracture is crossing areas where dural venous sinuses resides, venous hemorrhage can occur such as falx cerebri , tentorium cerebelli , and vertex (where superior ...
A subdural hematoma (SDH) is a type of bleeding in which a collection of blood—usually but not always associated with a traumatic brain injury—gathers between the inner layer of the dura mater and the arachnoid mater of the meninges surrounding the brain.
Because a patient may have a lucid interval, any significant head trauma is regarded as a medical emergency and receives emergency medical treatment even if the patient is conscious. Delayed cerebral edema , a very serious and potentially fatal condition in which the brain swells dramatically, may follow a lucid interval that occurs after a ...
Middle cerebral artery syndrome is a condition whereby the blood supply from the middle cerebral artery (MCA) is restricted, leading to a reduction of the function of the portions of the brain supplied by that vessel: the lateral aspects of frontal, temporal and parietal lobes, the corona radiata, globus pallidus, caudate and putamen.