“…In cases of acute hydrocephalus, temporary external ventricular drainage was usually ap-plied before surgical extirpation of the lesion, and in 5 previously reported cases permanent shunt treatment was indicated. 14,24,33,49,61 In this group, in 4 patients the cavernoma was in the third ventricle, and 1 newborn had a large lesion in the lateral ventricle.…”