Severe back pain post lumbar puncture. Headache. There is no evidence of intracranial hemorrhage, mass, or acute infarct. The brain parenchyma is unremarkable. The pituitary appears flattened, perhaps secondary to intracranial hypertension, unchanged from prior. 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, skull and paranasal sinuses are grossly unremarkable. The cerebellar tonsils are normal in position. Patient is status post left parietal craniotomy. There is a nonspecific enhancing lesion within the right parietal calvarium measuring up to 7 mm, unchanged.
No evidence of intracranial hemorrhage or acute infarct. Persistent flattening of the pituitary, perhaps secondary to known intracranial hypertension. 