The patient was a 76 year old
woman who had a history of porcine valve replacement for aortic stenosis and
stroke with left hemiparesis, who became withdrawn and suspicious of her
surroundings.
She had an abrupt decline in memory function and processing speed
at the time of the stroke, but had shown some improvement and was living independently.
Images show evidence of an old "slit hemorrhage" in the right basel
ganglia(lateral putamen), as well as several other small deep white and grey
matter lesions which probably represent infarction.
The perfusion pattern is
consistent with vascular disease as well, since multiple perfusion defects can
be seen throughout the brain.
