体检显示肺部小结节，近几天有些微咳嗽，无胸闷及其他症状，是否严重，是否需要进一步看诊治疗？，ct影像网址：https://www.kayicloud.com/Viewer/Index?dataid=MjAyMTAyMDIwOTI3&ds=rest&serverAddr=aHR0cDovL2ZkLmtheWljbG91ZC5jb206MTExMjU=&vendorCode=kayi&code=b&expires=1612574410&signature=381ef8792b16cd7ea68d90070a92e01f&targetApp=viewer&seriesUIStyle=fixed&lossless=1&opts=rs,exp