1.病例介绍 患者男,2岁零9个月。一个月前出现发热,体温最高达39.5℃,同时发现右颈部有一核桃大小肿物,无明显咳嗽,咳痰。曾到当地数家医院就诊,先后拟诊为颈淋巴结和颈淋巴结核,分别给予抗炎及抗痨治疗各半月,效果均欠佳。为进一步诊治,于99年9月10日转来我院。其父母健康,家庭无类似病史。查体:T37.6℃,右锁骨上窝触及一约3cm×3cm大小肿物, 1. Case description Patient male, 2 years and 9 months. A month ago, fever, body temperature up to 39.5 ℃, at the same time found a walnut-sized tumor in the right neck, no obvious cough, sputum. Had to several local hospitals for treatment, has been diagnosed as cervical lymph nodes and cervical lymph node tuberculosis, were given anti-inflammatory and anti-tuberculosis treatment for half a month, the effect is poor. For further diagnosis and treatment, in September 10, 99 transferred to our hospital. Their parents are healthy and their families have no similar history. Physical examination: T37.6 ℃, the right clavicle touched a size of about 3cm × 3cm tumor,