4-year-old boy. Past medical history of craniosynostosis, status post surgery. Presented with complex partial seizure. The head is elongated anteroposteriorly, compatible with a previous history of sagittal craniosynostosis.There is a 3 mm focal T2 hyperintensity in the right frontal white matter (involving the deep middle frontal gyrus white matter just superior to the inferior frontal sulcus). The focus is barely visible on T1 weighted images. At least one other similar though smaller focus is present in the right parietal subcortical white matter. These are nonspecific. There are also dilated perivascular spaces, most pronounced in the parietal white matter. There is no sign of cortical maldevelopment. The ventricular system and the other CSF-containing spaces are normal in size. The flow voids of the major intracranial vessels are preserved. The orbits are normal. The paranasal sinuses and the mastoid air cells are clear.
1.Two tiny white matter T2 hyperintense foci which may relate to a remote process versus persistent FLAIR T2 signal within a dilated perivascular space. They are nonspecific and of uncertain clinical significance.2.There is no sign of cortical maldevelopment or brain mass.3.Skull changes related to previous sagittal craniosynostosis. 