42 years, Female, with multiple sclerosis, evaluate for progression. Multiple T2/FLAIR hyperintense lesions are again seen including adjacent to the right temporal horn, left occipital horn, adjacent to the right lateral ventricle atrium as well as along the left midbrain tectum and superior cerebellar peduncle. These lesions were present on prior. No new lesions. Unchanged 39 x 50 mm right middle cranial fossa arachnoid cyst associated with mild expansion of the right middle cranial fossa. Unchanged 9 x 6 mm extra-axial dural based enhancing nodule along the left postcentral sulcus without mass effect on the adjacent parenchyma. Brain parenchymal volume is preserved. No abnormal enhancement to suggest active demyelination.No new intracranial mass or mass effect is seen. Ventricles are normal in size. No extra-axial collections. Extracranial soft tissues are unremarkable.
1. Scattered T2/FLAIR hyperintense lesions are nonspecific but compatible with known demyelinating disease. No new lesions. No abnormal enhancement to suggest active demyelination.2. Unchanged arachnoid cyst in the right middle cranial fossa.3. Unchanged small left parietal meningioma without significant mass effect.