 The ventricles and sulci are within normal limits. The basal cisterns remain patent. There is no midline shift or mass effect. There are no areas of abnormal signal. There is no diffusion abnormality. Moderate amount of bilateral hemispheric extra-axial fluid collection likely represent subarachnoid fluid collection is identified.Normal flow-voids are demonstrated in the major intracranial vascular structures. The midline structures and craniocervical junction are within normal limits. There is no abnormal enhancement. There is no intracranial mass.In the right frontal region of the calvarium there is a well-circumscribed lesion that may represent a sebaceous cyst versus epidermal inclusion cyst seen.
No evidence of metastatic disease to the brain. There is moderate amount of bilateral hemispheric extra-axial fluid seen, most likely subarachnoid fluid.