蕈样霉菌病是一种原发于皮肤淋巴网状系统的恶性肿瘤,是节外型皮肤恶性淋巴瘤的特殊类型。自然病程长,病情发展缓慢,早期易误诊。现将1例报道如下。患者女性,48岁,於1993年下半年起无明显诱因出现全身散在红斑,按之褪色,边界不清,不高出皮面,无触痛,仅觉瘙痒,局部有脱屑,初起为 Mycosis fungoides is a malignant tumor of the primary lymphatic system of the skin and is a special type of sectional cutaneous malignant lymphoma. Long natural course, slow progression of the disease, early misdiagnosis. Now one case is reported as follows. Patient Female, 48 years old, no obvious incentive to appear in the second half of 1993, systemic scattered erythema, according to the fading border is not clear, no higher than the skin, no tenderness, only itching, local desquamation, beginning