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CT lymphangiography (CTL) is a multimodal imaging method combining direct lymphangiography (DLG) and MSCT. It is an important imaging technology for the diagnosis of lymphatic reflux disorders. In order to better popularize and improve the utilization and success rate of this technology in clinic, this paper reviews the imaging technology and scanning parameters, indications or advantages and disadvantages of CTL, as well as its clinical application value in the diagnosis of lymphatic diseases. The purpose is to enable clinical physicians and radiologist to further understand and to realize the effective development and accurate diagnosis of this technology.