RESUMEN
Objective To discuss the microsurgical resection of intracranial cystic tumors.Methods From August 2003 to August 2010, 47 patients who had been diagnosed by imaging with intracranial cystic tumor received microsurgical resection. The tumors were confirmed by pathological examination postoperation.There were 22 cases of cystic glioma,8 cases of cystic meningioma,3 cases of malignant cystic meningioma,4 cases of cystic ependymoma,4 cases of angioreticuloma and 6 cases of cystic metastatic tumor.When the skull was minimally opened according to the location of the tumor,the hydatid fluid was absorbed before separation and resection of the tumor with its capsule under endoscopy. Results Total resection was performed in 31 cases (65.96％) and sub-total resection in 16cases (34.04％).No operative death occurred.Neural dysfunction was observed not long postoperation in 6 cases (12.77％),including one case of trigeminal nerve injury,one case of abducent nerve injury,one case of facial nerve dysfunction,one case of glossopharyngeal nerve injury,2 cases of paralysis and 2cases of hydrocephalus.Forty-one patients were followed up for 0.5 to 6 years.Eight patients (17.02％)had recurrence and 2 died. Conclusion Microneurosurgery can improve the total resection rate of intracranial cystic tumors with minimal invasion to neural functions.