患者男， 71岁， 2年前全身皮肤潮红，脱屑，在我院门诊诊断为红皮病，背部皮肤取材送病理活检：真皮浅层及小血管周围可见灶状有一定异形性的 T细胞浸润，表皮内可见散在的 T细胞浸润，病变符合蕈样肉芽肿。治疗：先后给予甲氨蝶呤、康宁克通、皮质类固醇等治疗，无好转。遂于 Male, 71 years old, 2 years ago, systemic skin flushing, scaling, diagnosed as erythroderma in our clinic, the back of the skin taken for biopsy: the superficial dermal and small blood vessels can be seen around the lesion has a certain shape of T cells Infiltration, interspersed with scattered T cell infiltration, lesions consistent with mycosis fungoides. Treatment: Methotrexate has been given, Kang Ning grams pass, corticosteroids and other treatment, no improvement. Then in