Male, 67 years old, with Parkinson's disease, patient with existing right deep brain stimulator, planning for new left deep brainstem related. A right frontal approach deep brain stimulator lead is in place coursing medially and inferiorly to terminate just below the level of the right thalamus. A left cerebral tract is visualized likely correlating to a previously removed left-sided deep brain stimulator lead.No pathologic intracranial enhancement is seen. T2 hyperintensity is seen along the left periatrial white matter. Mild proportionate prominence of the ventricles and sulci likely reflects parenchymal volume loss. Mucous retention cysts and/or mucosal thickening is seen in the maxillary sinuses.
The examination was acquired for presurgical planning and consists of limited sequences. A right sided deep brain stimulator lead is in place. Evidence of a previously removed left-sided deep brain stimulator lead is also seen.