Walton regards these patients as having had subarachnoid serous exudation and says: That a more or less diffuse ... the edema of the brain was seen to subside, and the signs of cortical ischemia ...
An eclampsia work-up revealed no peripheral edema ... a diffuse pattern of sausage-like dilatation with proximal and distal stenoses (the pearl and string sign; Figure 2a). MRI of the brain ...