Subarachnoid haemorrhage - perimesencephalic
Sudden onset of headache. No loss of consciousness and no focal neurological deficits.
Loading Stack -
0 images remaining
CT of the brain demonstrates subarachnoid blood located predominantly in the interpeduncular and prepontine cisterns.
This case illustrates the typical appearances of a perimesencephalic subarachnoid haemorrhage. As is usually the case no source of bleeding (ie no aneuryms or vascular malformation or tumour etc..) was found despite angiography and MRI.