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Meningeal melanocytoma
2017
中国现代神经疾病杂志 2017 年 6 月第 17 卷第 6 期 Chin J Contemp Neurol Neurosurg
unpublished
图 1 光学显微 镜观 察所 见 HE 染 色 1a " 编 织" 状 间质内 可见 巢片 状富 含黑色 素的 梭形 肿瘤 细胞 × 200 1b 肿 瘤细胞 胞 核呈椭圆形或豆形, 核仁可见、 呈嗜酸性 × 400 Figure 1 Optical microscopy findings HE staining Spindle tumor cells rich in melanin were arranged in nests within "braided" mesenchyma (Panel 1a). × 200 The nuclei of tumor cells were oval or bean•shaped, with eosinophilic nucleoli (Panel 1b). × 400 脑膜黑色素细胞瘤是一种源于软脑膜黑色素细胞, 组织学形态分化良好, 呈实性、 非浸润性的黑色素细胞瘤, 是一种孤立 性、 不伴周围组织浸润的低级别肿瘤。组织学形态特征性表现为上皮样、 纺锤形、 多形或梭形黑色素细胞, 无间变、 坏死, 核分 裂象少见;
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