[病例简介]女,51岁。主因腰痛伴双下肢间歇性跛行进行性加重6个月入院。患者于6个月前出现腰痛伴双下肢发沉、发胀,行走100m即需要下蹲休息,休息后症状好转,夜间平卧时加重。伴有长期低热,体温36.7~37.5℃,夜间尤为明显,常伴有大汗,出汗后自觉困倦、无力。无咳嗽、咳痰及声音嘶哑。体重进行性下降。个人史:生活在农村,与牛羊有接触史。当地给予抗炎、镇痛、对症治疗等未见好转。 [Case Profile] Female, 51 years old. Mainly due to low back pain with intermittent bilateral lower extremity claudication 6 months admitted to hospital. Patients with lower back pain and lower extremity soreness and swollen 6 months ago, walked 100m that need to squat to rest, rest after symptoms improved, increased supine nighttime. Accompanied by long-term fever, body temperature 36.7 ~ 37.5 ℃, especially at night, often accompanied by sweating, sleepy, sleepy, weakness. No cough, sputum and hoarseness. Weight decreased. Personal history: living in rural areas, history of contact with cattle and sheep history. Local anti-inflammatory, analgesic, symptomatic treatment and so on did not improve.