原发皮肤淋巴瘤 (PCL)是指首发于皮肤的淋巴瘤。发病开始皮肤病变比较局限 ,以后波及全身 ,出现皮肤外脏器侵犯 ,从而病变进展迅速 ,难于达到完全缓解 (CR)。 PCL患者的生存期长短不一 ,短者数月 ,长者达 10年～ 30年以上 ,为此 ,治疗前甄别预后因素 ,可指导治疗的方向和提高治 Primary cutaneous lymphoma (PCL) is a lymphoma that starts on the skin. Beginning of the onset of skin lesions more limited, and later spread to the whole body, external organs of the skin violations, so the disease progressed rapidly, it is difficult to achieve complete remission (CR). The survival of patients with PCL varies in length, the short period of several months, the elderly for 10 years to 30 years or more, for this reason, the prognostic factors before treatment can guide the direction of treatment and improve the treatment