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Lobar hemorrhages had occurred in 20 patients;the other 22 hemorrhages were in the basal ganglia or thalamus.No residual lesions were found on seven scans(17%),despite residual handicap in three of these seven patients(slight,moderate,and moderately severe).In five cases,the scan showed only focal atrophy,and in two there were only focal calcifications. There were six patients with slit-like lesions(only after deep hemorrhages),12 with rounded and isolated hypodense areas,and 10 with rounded hypodense areas connected to the ventricular system.The connection between the residual lesion and the ventricular system depended to a large extent on the size of the initial hematoma,but very little on whether it had initially ruptured into the ventricular system.Conclusions:A retrospective diagnosis of cerebral hemorrhage on radiological grounds can be made with confidence only in a small group of patients with slit-like lesions in the basal ganglia.This diagnosis is impossible in approximately one third of cerebral hemorrhages because the abnormalities are aspecific or have completely disappeared. |
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calcification,intracranial
CAT scan
CAT scan,abnormal
CAT scan,disappearing lesion on
intracerebral hemorrhage
intracerebral hemorrhage,lobar
prognosis
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