Post brain ablation for seizures: 3 month post op There are postoperative findings related to laser ablation of an exophytic hypothalamic hamartoma, which is unchanged in size, measuring up to 25 mm in width for example. There is concentric enhancement at the ablation site in the left lateral aspect of the lesion. The optic apparatus demonstrates normal signal characteristics. There is a non-enhancing T2 hyperintense focus in the region of the right anterior frontal lobe subcortical white matter that measures up to 12 mm, which has gradually increased in size, although there is no significant interval change. There is no evidence of acute cerebral infarction or hemorrhage. The ventricles are unchanged in size. There are findings related to prior frontal craniotomy and transcallosal surgery. There are small retained secretions within the left sphenoid and ethmoid sinuses.
1. Postoperative findings related to MRI guided laser ablation of a hypothalamic hamartoma, which is unchanged in size. 2. A nonspecific lesion in the region of the right frontal lobe that measures up to 12 mm has gradually increased in size. This may represent a hamartoma or low-grade neoplasm.