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目的 探讨鞍膈脑膜瘤（DSM）的分类、诊断及手术方法。 方法 经磁共振成像（MRI）检查发现12例DSM，其中6例为A型（鞍膈上垂体柄前），3例为B型（鞍膈上垂体柄后），2例为C型（鞍膈下蝶鞍内），1例为D型（累及鞍膈上下和垂体柄前后）。结果 12例病人均行手术治疗，其中11例全切除，1例大部切除，无手术死亡率和严重功能障碍。 结论 MRI是诊断DSM的最好方法。有助于鉴别垂体瘤和鞍结节脑膜瘤及其手术方法的选择。D型难以完全切除。
Objective To investigate the classification, diagnosis and operation of septal meningioma (DSM). Methods Twelve cases of DSM were found by magnetic resonance imaging (MRI), of which 6 were type A (anterior suprasellar ponsis), 3 were type B (posterior pituitary stalk), and 2 were type C Septum sellae), 1 case of type D (involving the upper and lower saddle diaphragm and pituitary stalk before and after). Results All the 12 patients underwent surgical treatment. Among them, 11 cases were totally resected and one case was mostly resected without operative mortality and severe dysfunction. Conclusion MRI is the best method to diagnose DSM. Help to identify pituitary tumor and saddle nodular meningioma and surgical methods of choice. D-type is difficult to completely remove.