临床资料患者女,14岁。因周身皮肤出现毛细血管扩张性红斑5年入院。患者5年前无明显诱因双小腿出现红斑,不痛不痒,站立时红斑明显,活动后红斑颜色变淡,2007年7月至今先后于多家医院就诊,分别诊为毛细血管扩张症、大理石样皮炎、色素性紫癜性皮病、网状青斑等。未予以特殊治疗,皮疹逐渐增多,依次波及双大腿、躯干部、双上肢,2年前面 Clinical data Patients Female, 14 years old. Due to the appearance of capillary edema in the skin 5 years admitted. 5 years ago, no obvious incentive to patients with erythema on both legs, itching, erythema when standing clear, pale red after activity, since July 2007 has been in several hospitals, were diagnosed as telangiectasia, marble Like dermatitis, pigmented purpura dermatosis, reticulocyte and so on. No special treatment, rash gradually increased, followed by spread of double thighs, trunk, upper extremities, 2 years ago