 There is focal FLAIR/T2 high signal intensity on the right periventricular white matter especially around the right lateral ventricle occipital horn. Possibility of this finding include prominent perivascular space more likely and focal encephalomalacia with some gliotic changes less likely.Hypoplastic vermis especially mid to inferior aspect and expanded 4th ventricle especially posterior aspect were seen indicating Dandy Walker malformation. However, the location of the torcular appears to be normal.There is no mass, mass effect, edema, midline shift, intra or extra-axial fluid collection/hemorrhage, or restricted diffusion/acute ischemia. The midline structures are normal. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.
1. Likely prominent perivascular space on the right periventricular white matter as described above. Otherwise no abnormal signal intensity lesion on this scan.2. Dandy Walker malformation as described above.