“…In this case, the patient was diagnosed with primary EMPD, with a large range of skin lesions, without lymph nodes and other internal organs metastasis, using local skin lesion enlargement excision, according to the size of the trauma to design the axillary near the back of the free skin ap, intraoperative re nement of the rapid frozen section examination showed negative margins, no lymph node metastasis, not only the incision is hidden, trauma is small, and it can be maximally maintain the appearance of the breasts and the function of the breasts are not affected, and signi cantly The quality of life of the patients was improved. However, the role of RT remains controversial, as only 15 patients have been treated with RT as the primary treatment modality to date [25,26]. Photodynamic therapy is the destruction of tumor cells by exogenous reactive oxygen species produced by light photosensitizers, the overall complete response rate was only 36%, making treatment in EMPD more limited [27].…”