Patient History:
10 year-old female with moyamoya
Moya-moya is a rare disorder of uncertain cause that leads to irreversible blockage of the main blood vessels to the brain as they enter into the skull. The name comes from the Japanese and means "puff of smoke". In children it tends to cause strokes or seizures. In adults it tends to cause bleeding or strokes.
Technique:
PET images of the brain were obtained pre and post Diamox administration
Findings:
The blood flow images show multiple defects bilaterally, including markedly decreased uptake in the left frontoparietal region superiorly, the left parietal region superiorly extending inferiorly into the posterior aspect of the left parietal lobe and into the left temporal lobe more markedly. Relatively mildly decreased uptake in the right cerebellum compared to the left
Impression:
Multiple blood flow defects are demonstrated bilaterally and calculated total blood flow decreased by 7% on the left and 6% on the right.
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