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本文收集了珠海地区最近七年内总共５４例恶性胸水病例。从本地区恶性胸水发病趋势以及形态学观察得出结论：１．本地阳性胸水高发组在５０～７９岁（＞８５％）；２．特高发组（６０～６９岁）中存在着显著的性别上的差异，男女之比为１：１０。女性占有绝对的性别优势；３．５４例阳性胸水中腺癌占９０．７％（４９例），鳞癌占５．６％（３例），未分化癌占３．７％（２例）；４．阳性胸水中不但见到癌细胞脱落，还可以观察到癌组织的脱落，后者仅见于腺癌一类中，甚而可以见到正常胸膜组织脱落；５．对高分化小细胞性腺癌中粘液性印戒细胞癌应与间皮细胞增生时印戒样变鉴别诊断；６．对血性或非血性胸水沉渣作组织切片应列为常规诊断，方法学上的对比研究可以互补不足，尤其在追踪不典型高分化腺癌，间皮细胞不典型增生等鉴别诊断与确诊上，有实质性的意义。
This article collected a total of 54 cases of malignant pleural effusion in the last seven years in Zhuhai. From the trend of malignant pleural effusion in the region and morphological observations, we draw conclusions: 1. The local positive pleural effusion high-risk group was between 50 and 79 years old (>85%); 2. There is a significant gender difference in the high-pregnancy group (60-69 years old), with a ratio of 1:10 for men and women. Women have absolute gender advantage; 3.54 cases of positive pleural effusions account for 90.7% of adenocarcinomas (49 cases), squamous cell carcinomas account for 5.6% (3 cases), and undifferentiated carcinomas account for 3.7% (2 cases). ;4. The positive pleural effusion not only saw cancer cells fall off, but also observed the shedding of cancerous tissue. The latter was only found in adenocarcinomas, and even normal pleural tissue could be seen off. 5. The differential diagnosis of mucin signet ring cell carcinoma in well-differentiated small cell adenocarcinoma should be compared with signet ringing in mesotheliosis; 6. Segmentation of bloody or non-blood pleural effusions should be classified as routine diagnosis. Comparing methodological studies can complement each other, especially in the differential diagnosis and diagnosis of atypical hyper-differentiated adenocarcinoma and dysplasia of mesothelial cells. Substantial significance.