57-year-old male with headache. Evaluate for stroke. Foci of hypoattenuation in the left cerebellar hemisphere compatible with known infarcts seen on MRI. Periventricular hypoattenuating foci are consistent with minimal ischemic small vessel disease, age indeterminate. The cerebral and cerebellar hemispheres and the brain stem are otherwise normal morphologically and have normal CT attenuation. The ventricles are normal volume.No abnormal extra axial fluid collections, mass, intracranial hemorrhage. The calvaria and skull base are radiographically normal. Bilateral opacification of the maxillary sinuses. The mastoid air cells are normally pneumatized.There is no evidence of intracranial hemorrhage, mass or edema. The ventricles and basal cisterns are normal in size and configuration.The calvaria and skull base are radiographically normal. The visualized paranasal sinuses and mastoid air cells are normally pneumatized.
No acute intracranial abnormality. If there is clinical concern for an acute stroke, an MRI may be obtained.