1病例介绍患儿,男,10岁,因“发热,伴颈部肿物20余日”入院。患儿20余天前无明显诱因出现发热,体温最高达39℃,同时发现颈部肿物,伴疼痛,给予静脉滴注头孢地嗪钠及炎琥宁治疗6 d,效果不佳,热退而复升,颈部肿物未见明显缩小。为进一步诊治送入我院。病程中患儿无盗汗、乏力、消瘦、呕吐、腹泻、鼻衄、牙龈出血等,偶有咳嗽,食欲一般,睡眠可,大小便正常,既往健康。人院时查体:T38℃,P 102次/min,R 24次/min,BP 90/55 mm Hg,精神 1 case description Children, male, 10 years old, because of “fever, with neck mass 20 days ” admission. More than 20 days before onset of fever in children with no obvious reason, the body temperature up to 39 ℃, also found neck mass, with pain, given intravenous cefodimethyl sodium and Yan Hu Ning treatment for 6 days, the effect is poor, the heat back Lifting, no significant neck neck mass reduction. For further diagnosis and treatment into our hospital. During the course of the disease, children had no night sweats, weakness, emaciation, vomiting, diarrhea, epistaxis, gingival bleeding, occasional cough, loss of appetite, sleep, normal urine and normal health. Physical examination at admission: T38 ℃, P 102 times / min, R 24 times / min, BP 90/55 mm Hg, spirit