Diffuse |
Diffuse |
|
|
Involving more than two contiguous lobes or brain regions, supra- and infratentorial compartments, or multiple basal cisterns |
Focal |
Focal |
|
|
In 1-2 locations or lobes of the brain |
Diffuse or vertical layers < 1 mm |
Diffuse or vertical layers < 1 mm |
|
|
Diffuse or vertical layers < 1 mm (Fisher 2) |
Focal cloth and/or vertical layer >= 1 mm |
Focal cloth and/or vertical layer >= 1 mm |
|
|
Focal cloth and/or vertical layer >= 1 mm (Fisher 3) |
Intraventricular cloth with diffuse or no SAH |
Intraventricular cloth with diffuse or no SAH |
|
|
Intraventricular cloth with diffuse or no SAH (Fisher 4) |