Headache and dizziness: progressed metastatic lung cancer. There are several subcentimeter calvarial enhancing lesions, as well as incompletely imaged right mandible and anterior right C2 lesions. There is no evidence of intracranial hemorrhage, mass, or acute infarct. The brain parenchyma and pituitary gland appear unremarkable. There is no abnormal intracranial enhancement. 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 are grossly unremarkable. There is a small right maxillary sinus rentention cyst. There is a nasal septal defect.
1. No evidence of intracranial metastases. 2. Multiple calvarial, right mandible, and right C2 metastases.