Intractable epilepsy. Preoperative planning for electrode placement. The study is limited by motion. The postcontrast isotropic sequence was repeated but is still affected by motion, though to a lesser extent.Subtle T2 hyperintensity involving the head of the left hippocampus is unchanged. There is no definite associated volume loss. Poorly defined contrast enhancement involving the anterior aspect of the pons at midline is unchanged, even compared to the more remote examination of December 2, 2011 and is compatible with capillary telangiectasia.There is no significant abnormality or change regarding the remainder of the brain.There is a retention cyst in the left maxillary sinus. The other paranasal sinuses and the mastoid air cells are clear. The orbits are normal. There is no destructive skull lesion.
1.Limited examination, for surgical planning purposes.2.Focal T2 hyperintensity in the left hippocampal head has not changed.3.Incidental pontine capillary telangiectasia is also unchanged.