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目的 分析后颅窝血管网织细胞瘤的特点,设计治疗方案,估计和预防术后并发症,降低致残率和死亡率。方法 回顾性分析1998年10月至2001年9月手术治疗和病理证实的7例后颅窝血管网织细胞瘤的临床资料。结果 7例血管网织细胞瘤分布在后颅窝的右侧小脑（2例）、左侧小脑（1例）、小脑蚓部（2例）及延髓背侧（2例）。2例为实质性肿瘤,5例为囊内结节样肿瘤,全部切除。3例出现不同程度的呼吸障碍和上消化道应激性溃疡出血,其中1例死亡。结论 血管网织细胞瘤在MRI上有其特点,能够术前作出诊断。对实质性肿瘤切忌术中穿刺或活检.更不能分块切除。这种肿瘤术后很有可能出现正常灌注压突破现象,必要时毫不犹豫地进行气管切开,辅以人工呼吸。小的实质性肿瘤或囊内结节样肿瘤手术是相对安全的。
Objective To analyze the characteristics of posterior fossa hemangioblastoma and to design the treatment plan to estimate and prevent postoperative complications and reduce morbidity and mortality. Methods The clinical data of 7 cases of posterior fossa retinoblastoma confirmed by surgery and pathology from October 1998 to September 2001 were retrospectively analyzed. Results Seven cases of hemangioblastoma were located in the right cerebellum (2 cases), left cerebellum (1 case), cerebellar vermis (2 cases) and medulla oblongata (2 cases) in the posterior fossa. 2 cases of solid tumors, 5 cases of intracapsular nodular tumors, all resected. Three cases of different degrees of respiratory disorders and upper gastrointestinal ulcer bleeding, of which 1 case died. Conclusion Vascular sarcoma has its own characteristics on MRI and can be diagnosed preoperatively. Anesthesia should not puncture or biopsy of the solid tumors. This tumor is likely to occur after the normal perfusion pressure breakthrough phenomenon, if necessary, do not hesitate to tracheotomy, supplemented by artificial respiration. Small solid tumors or cystic nodular tumor surgery is relatively safe.