我院1976年1月至1985年6月,共收治胸腔积液者1251例,经细胞学检查确诊为恶性肿瘤者242例,占同期胸腔积液患者的19.3%,其中资料完整可供临床分析讨论者167例。167例中男性92例,女性75例,男:女=2.24:1。其中年龄最小为6岁,最大81岁。40岁以上者128例占76.7%,说明癌性胸腔积液具有恶性肿瘤的共同规律,即40岁以上者多 From January 1976 to June 1985 in our hospital, 1251 cases of pleural effusions were treated. 242 cases of malignant tumors were diagnosed by cytology, which accounted for 19.3% of patients with pleural effusions in the same period. Data were available for clinical analysis. 167 discussants. In 167 cases, there were 92 males and 75 females, male: female = 2.24:1. Among them, the youngest is 6 years old and the oldest is 81 years old. For those over 40 years old, 128 cases accounted for 76.7%, indicating that cancerous pleural effusions have the common law of malignant tumors, ie those over 40 years of age