[例1],患者男性,59岁,长征医院住院号151558。胸闷气急一个月,右胸腔内大量积液,肺部 X 线阴性。胸水涂片:镜下见大小不一成团瘤细胞,核染色质细,部分分布不均呈条纹状,个别核有突起。有1～3个核仁,浆染暗红色,瘤细胞间大部边界不清,可见数个至数十个瘤细胞排列呈圆形 [Example 1] The patient male was 59 years old and the Long March Hospital was hospitalized with 151,558. Chest tightness and shortness of breath for one month, a large amount of fluid in the right chest cavity, lung X-ray negative. Pleural water smears: Microscopically, tumor cells of different sizes are seen. The nuclear chromatin is fine, and some of them are unevenly distributed in stripes. Individual nucleuses have projections. There are 1 to 3 nucleoli, the stain is dark red, and most of the tumor cells have unclear boundaries. It can be seen that several to dozens of tumor cells are arranged in a circular shape.