[Percussion auscultation of transient ischemic attacks. Role of cerebral evoked potentials]

The auscultatory percussion signs present during so called transitory ischaemic attacks are described. Long experience has revealed the identification of cerebral evoked potentials to be particularly valuable, both in confirming diagnosis and monitoring treatment. "Bed-side" identification of cerebral evoked potentials is an extension of physical symptomatology as applied to diseases of the nervous system. Finally, differential diagnosis with cerebral tumours often associated with enigmatic phenomena is discussed.