in addition to demonstrating focal lesions in a proportion of patients with seizures and in patients presenting with a stroke , the cat scan showed a premature degree of cerebral atrophy in an appreciable proportion of patients with long-standing epilepsy , hypertension and diabetes , and in some patients with migraine , valvular and ischaemic , heart disease , chronic obstructive airways disease , and chronic renal failure .
C0036572
seizures
C0014544
epilepsy