[A clinical and CT analysis of 28 cases of spontaneous cerebellar hemorrhage].

28 cases of spontaneous cerebellar hemorrhage diagnosed with CT scanning were analysed. Based on the findings of the CT scans as well as the clinical manifestations it could be recognized that there were 3 types of cerebellar hemorrhage: 1. Vermis hemorrhage usually complicated with rupture into the fourth ventricle needed immediate operation for alleviating and checking the ventricular hemorrhage and hydrocephalus. 2. Massive hemorrhage in the cerebellar hemisphere resulting in forming a hematoma of less than 10 ml and larger than 5 ml could be treated conservatively under close observation, but for those case with larger hematomas, operative treatment would be mandatory. 3. Small hematomas of less than 5 ml in the cerebellar hemispheres could also be treated conservatively. The authors emphasized that acute obstructive hydrocephalus should be considered to be an important factor in leading to a fatal outcome in these cases.