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囊性脑膜瘤较少见,其发病率在4％～7％之间。囊性脑膜瘤与脑内其他囊性肿瘤的鉴别较困难。作者报导1984～1993年间232例脑膜瘤中的17例囊性脑膜瘤病例。17例中6例为瘤周型,11例为瘤内型。 瘤周型均为男性,41～50岁年龄组占4例,6例中4例为凸面脑膜瘤,1例嗅沟,1例窦汇区脑膜瘤。病理:5例为乳突状脑膜瘤,1例成纤维型脑膜瘤。Nauta’s分型6例均为Ⅳ型。瘤内型11例,7女4男,31～40岁组14例,41～50岁2例,51～60岁3例,21～30岁及60岁以上者各1例,8例凸面型,3例蝶骨嵴型。病理:3例为乳突状脑膜瘤,5例血管型脑膜瘤,1例混合型,1例血管外膜细胞型,1例退行细胞
Cystic meningiomas are rare, the incidence of 4% to 7%. Cystic meningiomas and other cystic tumors more difficult to identify. The authors report 17 cases of cystic meningiomas in 232 meningiomas between 1984 and 1993. Of the 17 cases, 6 were peritumoral and 11 were intratumoral. Peri-tumor were male, 41 to 50 years old group accounted for 4 cases, 6 cases of 4 cases of convex meningioma, an olfactory groove, a case of Douhui meningioma. Pathology: 5 cases of papillary meningioma, 1 case of fibroblastic meningioma. Nauta’s classification of 6 cases were type Ⅳ. There were 11 cases of intratumoral tumor, 4 males and 7 females, 14 males from 31 to 40 years old, 2 cases from 41 to 50 years old, 3 cases from 51 to 60 years old, 1 case from 21 to 30 years old and over 60 years old, 8 cases were convex , 3 cases of sphenoid ridge type. Pathology: 3 cases of papillary meningioma, 5 cases of vascular meningioma, 1 case of mixed type, 1 case of adventitial cell type, 1 case of retrogressive cells