Here, investigators will enroll the stage I-IV cutaneous T-cell lymphoma (CTCL) of International Society Cutaneous Lymphomas (ISCL)/U.S. Cutaneous Lymphoma Consortium (USCLC)/European Organization for Research & Treatment of Cancer (EORTC), patients who are candidates for TSEBT by recommendation of National Comprehensive Cancer Network Guidelines (Version 4.2011, Mycosis fungoid/Sezary syndrome) or who are refractory or not feasible to the topic UV irradiation, Interferon alpha, psoralen plus ultraviolet A photochemotherapy, and Accutane® (Isotretinoin) or chemotherapy to receive HITS to replace TSEBT. Additionally, we will compare the advantages and disadvantages between the plan of HT and conventional RT for TSEBT.