EMA、GFAP、CgA、S-100（—）。

Malignant meningioma.

 需排除转移癌

依据免疫组化及形态，脑膜瘤诊断成立，且级别较高，考虑WHO2级，倾向横纹肌样脑膜瘤

不排除转移癌

考虑转移癌

 补做免疫组化SMA（—），DES（—），Myogobin（—）。

名称：图1
描述：SYNX100

名称：图2
描述：SYNX200

名称：图3
描述：SMAX100

和脑膜有关系吗？

Based on cytology and architecture, this is likely a metastatic high grade carcinoma with spindle cell features. I do not think it is high grade astrocytoma or metastatic melanoma or meningioma. Some tumor cells have globular cytoplasm suggestive of intracytoplasmic mucin production and adenocarcinoma, but this requires further investigative staining. I suggest doing mucicarmine, Cam5.2, TTF-1, Napsin A, CK5/6 and p63 protein to see if this is an adenocarcinoma or spindle cell squamous cell carcinoma of pulmonary origin.

转移性肉瘤样癌（癌肉瘤）请查肺

 考虑转移癌