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患者女,32岁.融合性红色斑片32年,局部变硬半年.臀部、右下肢外上1/3,左下肢外侧1/2,左上肢融合性红斑;左侧臀部下方及大腿外侧分别可触及约5cm×3cm,6cm×4cm大小质硬斑块.超声提示:结节处迂曲管状回声,内见条索状回声,管腔内血栓形成,呈散在分布,与触诊结节范围一致,局限于皮肤及皮下脂肪层,未累及肌层.生化,抗核抗体,抗ENA抗体,凝血检查未见异常.诊断:鲜红斑痣;自发性局部血栓.“,”A 32-year-old female presented with merged erythema for 32 years,which became hardened tor half a year.The lesions located on the whole hip,lateral 1/3 of the right lower limbs,lateral 1/2 of the left lower limbs and the left upper limb.Plagues on the left hip and outside of the left lower limbs were 5cm × 3cm and 6cm × 4cm,respectively.Ultrasound showed tubular structures and cord-like echoes in the plagues.Localized thrombosis scatteredly presented in the skin and subcutaneous tissue on the site where plagues located.No muscles were involved.The antinuclear antibodies (ANA),anti-ENA antibodies and blood coagulation function were normal.A diagnosis of nevus flammeus with spontaneous local thrombosis was made.