Headache that wakes her up from sleep and history of renal cell carcinoma. There is no evidence of intracranial hemorrhage, mass, or acute infarct. There are mild scattered cerebral white matter, which is nonspecific, but may represent chronic small vessel ischemic disease. 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 are grossly unremarkable. There is minimal fluid within the right mastoid air cells. There appears to be a partially imaged fluid-signal lesion in the left mandible.
1. No evidence of acute intracranial tumors, within the limits of a non-contrast exam.2. An apparent partially imaged fluid-signal lesion in the left mandible may represent a periapical cyst. Dedicated imaging of this region may be useful for further characterizing this.