Fig. 2.
(A) Case 1: Presurgical MRI of Case 1 showing a lesion in left temporal lobe, approximately 2×2 cm, which enhances with gadolinium (white arrow). (B) Postoperative MRI of Case 1 showing complete surgical resection of the brain tumor. (C) Case 2: Superimposed spike dipole on a coronal image of patient’s individual MRI. Note that the spikes, shown in Fig. 3 as (a), (b), and (c), are estimated to come from left temporal area. (D) Case 2: Subtraction ictal SPECT with 99m-Tc ethyl cysteinate dimmer. Note that the hyperperfusion (defined as over 2 with a Z score) occurs in the left superior to middle temporal gyrus.