囊性脑膜瘤(附14例报告)

Cystic meningioma(report or 14 cases)

目的对囊性脑膜瘤的临床特点进行探讨。方法总结１９９６年１月至１９９７年８月收治的１４例颅内囊性脑膜瘤的临床经验。结果１４例患者肿瘤全切除１３例，次全切除１例，无手术死亡。结论脑膜瘤由于急性囊变，引起严重的临床症状，加速了病情发展，往往误诊为其它性质的病变。ＭＲＩ对诊断囊性脑膜瘤很有价值，但不能明确分型。病理变化包括急性出血性坏死和慢性缺血性变化。囊性脑膜瘤手术时在不损伤神经功能区的前提下，不仅切除肿瘤结节，还应彻底切除囊壁以防止复发。

Obfective To discuss the clinical features of cystic meningioma. Methods Fourteen cases ofcystic meningioma patients which had been treated in our hospital from January 1996 to August 1997 were analyzed.Results Total surgical resection were done in 13 cases, subtotal resection in 1 case. There were no operativemortality.Conclusion Cystic meningioma could sometimes be misdiagnosed from other disorders because of its cystformation, rapid growth and severe clinical symptoms. MRI is beneficial to the diagnosis but not definite in its classification The pathological features of cystic meningioma includes acute hemorrhagic necrosis and chronic ischemicchanges. Under the prerequisite of avoiding damage of important functional areas, not only the tumor nodule should beresected totally, but also the wall of the cysts should be removed with microsurgical techniques to prevent recurrence.