NS-33: MANAGEMENT OF MB IN CHILDREN: 105 CASES REPORT FROM THE DEPARTMENT OF PEDIATRIC NEUROSURGERY, XINHUA HOSPITAL

OBJECTIVE: In this report, we'd like to talk about the management of MB by presenting 85 cases we collected. METHOD: The data was obtained from 105 cases of MB accepting operation from Jan.1st 2006 to Mar.18 2015. We conclude the clinical characteristics of: tumor location, clinical features, approach route, resection degree, prognosis, etc. RESULTS: Among all 105 cases, almost all tumors locate at IV ventricle or cerebellum.The tumors were approached mainly by 2 routes. In 80 cases, we removed the tumors totally. Overall survival was 56%, 42 patients accepted radiation or chemo-therapy, 12 patients cannot be contacted. CONCLUSION: The most common approach routes are through vermis cerebelli and cerebellar medullarfissure. Five-year event-free survival was 43%, overall survival was 56%. 90% of patients who accepted radiation or chemo-therapy experienced 5-year event-free survival.