胃SMARCA4缺失性未分化癌3例及文献复习
摘要
医生对该疾病的认识。方法:收集3例胃SMARCA4缺失性未分化癌患者,总结其临床表现、病理特征及治疗和预
后情况并复习国内外文献。结果:3名患者均为男性,年龄分别为68、72岁、76岁,患病部位分别为胃窦部、贲门、
贲门。镜下见肿瘤细胞中-重度异型性,上皮样,胞浆嗜酸,胞核呈空泡状,核仁明显,排列均呈实性片状、巢团
状、条索状,细胞黏附性较差。免疫表型:患者CK均阳性,SMARCA4(BRG1)均阴性,Her-2均无扩增,术后
一名复发。结论:胃SMARCA4缺失性未分化癌恶性程度较高,患者预后差,其形态学和免疫表型有一定特征性,
最终诊断依赖于SMARCA4的表达缺失。
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