Echo-encephalographic studies in patients with space-occupying lesions in the posterior fossa.
Echo-encephalographic studies were performed on 57 patients treated for space-occupying lesions in the posterior fossa. Preoperative echo-ventriculography (EVG) on 36 patients showed that 32 (89%) had dilatation of the third ventricle. Three of the four patients with normal preoperative ventricle width had cerebello-pontine angle tumors. Papilledema was lacking in many cases with considerable ventricular dilatation on EVG. Postoperative examinations on 49 patients showed in most cases a fairly rapid normalization of ventricular size often already during the first 1-4 weeks after operation. Postoperative EVG monitoring of the ventricular system was particularly useful for detection of shunt dysfunctions and recurrence of tumors. Computerized tomography have to some extent replaced echo-encephalography, but it is concluded that EVG still offers some definite advantages for certain application in the management of patients with posterior fossa lesions.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000601:surgery; D002552:Cerebral Ventricles; D002557:Cerebrospinal Fluid Shunts; D002648:Child; D002675:Child, Preschool; D003388:Cranial Fossa, Posterior; D004453:Echoencephalography; D004569:Electroencephalography; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006849:Hydrocephalus / Q000209:etiology; D007223:Infant; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D010211:Papilledema / Q000175:diagnosis; D012044:Regression Analysis