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报告４种少见的脑膜瘤亚型：分泌型、微囊型、脂肪瘤和黄色瘤型。临床表现主要有头痛、恶心、轻度呕吐、眼底水肿和肢体功能障碍。形态学：分泌型脑膜瘤以散在多个嗜酸性近圆形包含体为特征，包含体对ＣＥＡ、ＥＭＡ呈特异性表达；微囊性脑膜瘤含微小囊腔状如海绵，囊内含粉染浆液，囊壁由疏松和涡漩状排列之瘤细胞组成；脂肪瘤和黄色瘤型脑膜瘤分别在其瘤组织中含有大量脂肪细胞或泡沫细胞为特征。文中讨论了肿瘤形成机制及鉴别要点。
Four rare meningioma subtypes were reported: secretory, microcapsule, lipoma, and xanthoma. Clinical manifestations are headache, nausea, mild vomiting, retinal edema and limb dysfunction. Morphology: Secretory meningiomas are scattered in a number of eosinophilic round inclusions, inclusions specific expression of CEA, EMA; microcapsule meningioma with micro-cysts like sponge, vesicle-containing powder The serous fluid was composed of loose and swirling tumor cells. Lipoma and xanthomatous meningioma were characterized by a large number of adipose cells or foam cells in their tumor tissues, respectively. The article discusses the mechanism of tumor formation and the main points of identification.