 There has been significant interval reduction in size of a pineal region mass now measuring 17 mm AP x 14 mm transverse x 14 mm craniocaudal (previously 36 x 28 x 26). There has also been associated decrease in regional mass effect, and previously demonstrated ventricular dilatation is now nearly normalized. Findings of transependymal CSF resorption have decreased. Compared to the recent head CT, again noted is a shunt tract of the right frontal lobe which demonstrates persistent T2 hyperintensity and enhancement, the latter of which is uncertain clinical significance.There is no evidence of intracranial acute infarct. There is no midline shift or herniation. The major cerebral flow voids are intact. The nasal sinuses and mastoid air cells are clear.
1.There has been significant interval reduction in size of a pineal region mas2.There has also been associated decrease in regional mass effect, and previously demonstrated ventricular dilatation is now nearly normalized. Findings of transependymal CSF resorption have decreased. 3.Again noted is a shunt tract of the right frontal lobe which demonstrates persistent T2 hyperintensity and enhancement, the latter of which is uncertain clinical significance.