brain and haemorrhage-1

extradural haemorrhage

cant cross the suture[the dura attach directly to the bone]
haemorrhage can cross the midline
haemorrhage is biconvex shape



subdural haemorrhage

can cross the suture
cant cross the midline[due to presence of falx cerebri]
cresenteric shape

























subrachnoid haemorrhage

the blood fill the fissures and the sulci
not cross the midline
usually due to:
1.trauma
2.rupture of aneurysm
3.AVM