患者，女，33岁，农民。患者5天前不明原因发热、乏力，伴头痛、咳嗽，吐白色抱沫样痰。曾接“上感”治疗，体温有所下降。近2天来双小腿及前臂发生黄豆一枣大的红斑性结节，自觉疼痛。皮损渐增大、增多泛发于四肢、臀部及躯干，成批出现。有时膝、踝关节肿痛。既往无结核病史 Patient, female, 33 years old, farmer. Patient 5 days ago unexplained fever, fatigue, with headache, cough, spit white foam-like sputum. Once the “flu” treatment, body temperature decreased. Nearly 2 days to produce double leg and forearm big jujube erythema nodules, conscious pain. Lesions gradually increased, increased in the limbs, buttocks and torso, appear in batches. Sometimes knee, ankle swelling and pain. No past history of tuberculosis