1　病例介绍患者 ,男性 ,38岁。主因全身皮肤红斑半年余 ,伴乏力、嗜睡、消瘦及发热 1个月入院。患者于半年前无明显诱因出现全身皮肤大小不等红斑 ,轻微瘙痒 ,无脱屑。查体无浅表淋巴结肿大 ,心肺无异常 ,肝脾未触及。腹部超声肝脾、腹腔淋巴结未见肿大 ,双肾及肾上腺未见异常 1 case description Patient, male, 38 years old. Mainly due to systemic skin erythema more than six months, with fatigue, lethargy, weight loss and fever 1 month admission. Six months ago, no obvious incentive for patients with systemic skin size ranging from erythema, mild itching, no scaling. No superficial examination of lymph nodes, no abnormal heart and lung, liver and spleen not touched. Abdominal ultrasound liver and spleen, abdominal lymph node enlargement, no abnormalities in both kidneys and adrenal