Abstract
Cerebral edema around the lead has been reported as a complication of deep brain stimulation; however, the causes remain unknown. Herein, we present a rare case of sudden cerebral edema around the lead occurring after deep brain stimulation. This was accompanied by cerebrospinal fluid (CSF) leakage into the subcutaneous thoracic pocket around the implantable pulse generator in a 53-year-old man with Parkinson's disease. No such case has been reported thus far. Lumbar drainage was performed to improve CSF leakage. The cerebral edema initially responded to steroids, but then it stopped responding to treatment. The edema appeared alternately on the left and right sides, and cyst formation was noted around the left lead. There are some reports of cyst formation around the lead; however, in our case, images were used to monitor the edema and cyst from their appearance to their disappearance. Our data suggest that cyst formation and cerebral edema are related.
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