Nghiên cứu chẩn đoán khối u não hố sau tại khoa ngoại Bệnh viện Bạch Mai

Objective: To assess the clinical features and imaging diagnosis of the posterior fossa brain tumors. Method: This prospective study is performed on 29 patients admitted Bach Mai hospital between 10/2013 and 4/2014 for the posterior fossa tumors. Results: Female/Male: 1.6/1. Mean age 41,5. Avarage time before diagnosis was estimated 7,6 months. Initial clinical symtoms included headache, dizzisse 100 percent, Intracranial hyperpression syndrome and cerebellar syndrome 100 percent hearing impairment or loss in 20,6 percent, 17,2 percent patients had clinical manifestation of injuring cranial nerve V and 31 percent with clinical manifestation of injuring IX,X,XI. 62,1 percent of tumors located in cerebellar region, 17,2 percent in ponto-cerebellar angle, 17,2 percent in vermie. 17,2 percent were unchanged in diametre of internal porous acousticus, 72,4 percent had hydrocephalus, Histopathological diagnosis was accurated in 93,1 percent, Diagnosis was high acuracy in meningioma, schwannoma, astrocytoma, hemangioblastoma, medulloblastoma, epidermoid cyst. Conclusion: The posterior fossa tumors accounts for 21,8 percent brain tumors operated at Bach mai hospital. Clinical feature includes intracranial hyperpression syndrome and cerebellar syndrome. Radiological finding can diagnosis tumor, location, size tumor and histopathological diagnosis with high accuracy.