Deep brain stimulation planning for Parkinson disease. There is a developmental venous anomaly in the left frontal lobe. There is diffuse cerebral volume loss. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues are grossly unremarkable.
Pre-treatment planning MRI demonstrates diffuse cerebral volume loss and a developmental venous anomaly in the left frontal lobe.