61 year-old female with headache. Prominent hypodensities at the bifrontal convexities may represent prominent subarachnoid space; however, chronic subdural collections may have a similar appearance. This finding can be compared to outside studies if available or a follow-up MRI may be considered if clinically needed. No acute findings identified. There is no evidence of acute 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.
Prominent hypodensities at bifrontal convexities may represent prominent subarachnoid space. However chronic subdural collections may have a similar appearance. Please correlate this finding with outside studies if available. An MRI evaluation may be considered if clinically indicated.