THE PATHOLOGIC ASPECT OF SOME EPILEPSIES

The literature contains numerous examples of material lesions in the cerebrum which are associated with typical epileptic convulsions of the jacksonian or general type. Among the latest pathologic records may be mentioned: tumors of the pontocerebellar angle, the angular gyrus, the temporal convolutions and the pituitary gland; dilatation of the lateral ventricles; hemorrhage in the occipital lobe, and thrombophlebitis of the under surface of the frontal lobe.¹ It is evident that a pathologic process in many portions of the brain may be accompanied by epileptic seizures, and these areas may therefore be considered as epileptogenous zones. In the present contribution a pathologic lesion in a rather rare localization of the brain is described; the lesion, during the patient's life, was a stimulating surface for convulsive discharges. In the absence of clinical evidences of gross pathologic involvement of the brain, particularly in cases of focal epilepsy, it is well to refer