Headache for 3 weeks. There is no evidence of intracranial hemorrhage, mass, or acute infarct. The brain parenchyma and pituitary gland appear unremarkable. There is a right parietal lobe developmental venous anomaly. 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, and mastoid air cells are grossly unremarkable. There is a small left maxillary retention cyst. There is also a subcentimeter low signal nodule in the left occipital scalp, which may represent an epidermoid.
Incidental right parietal lobe developmental venous anomaly, but no evidence of intracranial hemorrhage, mass, or acute infarct. 