Objective: The aim of this study was to investigate the endoscopic treatment of cerebral hemisphere convexity arachnoid cyst.
Methods: Eight cases of hemisphere convexity arachnoid cyst treated with cyst-ventricular or cisternal endoscopic approach in September 2007 to March 2011 were retrospectively recruited. The clinical symptoms, radiological findings, surgical indications, surgical approach, complications, and follow-up studies were analyzed.
Results: All patients showed convexity arachnoid cysts adjacent to the ventricles or cisternal. After treatment, all patients showed decrease in size of the cysts (100 %), with preoperative symptoms disappeared in six patients and improved in two cases. In one case, postoperative subdural effusion was found without symptoms reported.
Conclusion: Endoscopic surgery is ideal for treatment of arachnoid cysts adjacent to the ventricles or cisternal.