Rule out bleed or acute change. Signs and symptoms: Encephalopathy. No evidence of hemorrhage, edema, mass-effect, midline shift or hydrocephalus. Cortical sulci, ventricular system and all CSF cisterns remain within normal range for patient's stated age of 69. Large vessel intracranial vascular calcification. Calvarium, paranasal sinuses and mastoid air cells are unremarkable. If clinical concern persist an MRI is recommended.
Negative CT of brain without infusion.