63.MOST COMMON FRACTURE CAUSING EXTRADURAL HAEMORRHAGE
A.FRONTAL
B.PARIETAL
C.TEMPORAL
D.OCCIPITAL
ANS:TEMPORAL
The extradural area is the space between the inner table of the skull and the outermost lining of the brain (dura mater). Bleeding in the extradural or epidural space (epidural hematoma) accounts for about 2% of all types of head injury. About 85% of those with an extradural hematoma have also sustained a skull fracture. The most common site of the fracture is the temporal bone that lies just above the ear on either side of the head. This fracture can cause tearing of an artery (middle meningeal artery) and result in bleeding and blood clot (hematoma) formation. The bleeding is usually rapid and can cause a sudden increase in pressure in the brain. Left untreated, it can force the brain to move downward toward the spinal canal (herniate) and may result in further neurologic morbidity or even death.
A.FRONTAL
B.PARIETAL
C.TEMPORAL
D.OCCIPITAL
ANS:TEMPORAL
The extradural area is the space between the inner table of the skull and the outermost lining of the brain (dura mater). Bleeding in the extradural or epidural space (epidural hematoma) accounts for about 2% of all types of head injury. About 85% of those with an extradural hematoma have also sustained a skull fracture. The most common site of the fracture is the temporal bone that lies just above the ear on either side of the head. This fracture can cause tearing of an artery (middle meningeal artery) and result in bleeding and blood clot (hematoma) formation. The bleeding is usually rapid and can cause a sudden increase in pressure in the brain. Left untreated, it can force the brain to move downward toward the spinal canal (herniate) and may result in further neurologic morbidity or even death.
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