Seizures and visual disturbance. History of crack cocaine use. Many of the sequences are degraded by patient motion. There is no evidence of intracranial hemorrhage, mass, or acute infarct. The brain parenchyma and pituitary gland appear unremarkable. There is no abnormal intracranial enhancement. The ventricles and basal cisterns are normal in size and configuration. There is no midline shift or herniation. The major cerebral flow voids are intact. The orbits, skull, paranasal sinuses, and scalp soft tissues appear unchanged, including nonspecific diffuse bone marrow hypointense signal on T1 and T2 -weighted sequences and areas of soft tissue thickening in the scalp.
No potential seizure foci are identified, within the limits of motion artifacts. 