为了解不同职业人群中患单纯性肾囊肿发生的情况 ,对 1818名职业性体检者进行Ｂ超检查 ,现报告如下。1　对象与方法　　受检对象为在我院职检的工人、管理人员、技术人员等共 1818名 ,其中男性 13 3 6名 ,女性 482名 ,年龄 2 0～ 65岁 ,使用仪器为日立ＥＵＢ40 5型超声实时显像 In order to understand the occurrence of simple renal cysts in different occupational groups, B-ultrasonography was performed on 1,818 occupational physical examinations. The report is as follows. 1 Subjects and Methods Subjects There were a total of 1818 workers, managers, and technicians who were inspected in our hospital, including 136 males and 482 females, aged 20 to 65 years old. The instrument was Hitachi EUB40 5 Ultrasound real-time imaging