For patients with tumors, EN was used in 1 cases, ECM in 5 cases, EAM in 9 cases, symptomatic improvement were achieved in 14 of 15 patients, unchanged in 1 case.

• 颅内肿瘤用EN切除 1例 (1 5cm直径 ) ,ECM全切 5例 ,EAM全切 9例 ,其中 13例症状缓解 ,1例无变化 ;