Abstract

目的: 探讨脑脊液细胞片行褪色再染在脑膜癌病诊断中的运用。 方法: 回顾性的收集经组织学证实肿瘤原发灶伴发影像学脑转移的脑脊液细胞片7例(肺腺癌脑转移5例,胃腺癌脑转移2例),选取每例中的HE片入95%乙醇+0.5%盐酸乙醇褪色再巴氏染色,巴氏片入80%乙醇+0.5%盐酸乙醇褪色再免疫细胞化学双重染色。 结果: 巴氏重染细胞透亮度佳,核质分明,核染色质及核仁结构清晰,胞核蓝色,胞质灰蓝色;免疫细胞化学双染效果:甲状腺转录因子1(TTF1)/Napsin A:核/质呈棕褐色/红色表达;CDX2和过碘酸雪夫双染:核/质呈浅褐色/粉红色表达。巴氏和免疫细胞化学重染均未见细胞脱落,细胞形态完整、无交叉反应,核质分明,背景干净。 结论: 褪色再染可在同一张脑脊液细胞片上实现,对于细胞学中脑转移癌的肿瘤类型及追溯原发灶提供诊断的依据。.

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