 There is a 6-7 mm cystic-appearing focus within the expected location of the pineal gland demonstrating nonnodular, peripheral enhancement. The ventricles and sulci are normal in size. The cerebellar tonsils are in normal position. There are no masses, mass effect or midline shift. The pituitary gland is normal in size. There is no evidence for intracranial hemorrhage or acute cerebral, brainstem or cerebellar infarction. No diffusion-weighted abnormalities are identified. There are no extraaxial fluid collections or subdural hematomas. Flow voids are present within the major vessels indicating patency. The paranasal sinuses and mastoid air cells are clear. There is no abnormal enhancement within the brain.
1.6-7 mm simple pineal cyst.2.No significant T2 residua from previous ADEM.3.No abnormal enhancing foci, masses, or mass effect.