Seizures, assess for focal lesion causing epilepsy. There are multiple nodules that are isointense to gray matter on both T1 and T2 along the undersurface of the trigone and occipital horn of the left lateral ventricle, compatible with temporal and occipital subependymal heterotopia. Similar abnormality is present along the superior aspect of the posterior body of the left lateral ventricle (parietal). There is no associated susceptibility.There is mild asymmetric expansion of the temporal horn of the left lateral ventricle. High resolution coronal T2 and T2 FLAIR imaging of the hippocampi is notable for mildly increased T2 FLAIR signal in the left hippocampal head (images #15 and 16 of series #1001), which is associated with asymmetric volume loss. The remainder of the brain shows no abnormality. The ventricles and other CSF-containing spaces are normal in size. There is no midline shift or brain herniation. The flow voids of the major intracranial vessels are preserved, reflecting gross patency.There is no gross orbital abnormality. The mastoid air cells are clear. There is no destructive skull lesion.
1.Multiple nodules along the left lateral ventricle as described above are consistent with nodular subependymal heterotopia.2.Findings suggestive of left mesial temporal sclerosis.I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.