[病例] 患者,女,17岁。因持续高热半月入院。病人半月来发冷、发热、体温达39℃以上;大汗,但无盗汗;伴恶心,未吐;有时头痛;食欲明显减退,大便2～3次/日;尿量正常,无血尿、腰痛、尿频、尿急;病后13天有时咳嗽,咯粘痰,但无血痰、胸痛而入院。本人及家中无“结核病”记载。查体:T:39.8℃,脉搏88次/min,呼吸20次/min,血压12.0/9.3kPa。表情淡漠,神志清,皮肤无皮疹、黄染,出血点,颌下触及2～3个黄豆大小淋巴结,活动良好。心脏无异常。两肺散在干罗音。腹平软、无压 [Case] ​​Patient, female, 17 years old. Due to sustained high fever admitted to hospital for half a month. Patients with fever, body temperature over 39 ℃; sweat, but no night sweats; with nausea, no spit; sometimes headache; loss of appetite, stool 2-3 times / day; normal urine output, no hematuria, low back pain , Frequent urination, urgency; 13 days after illness sometimes cough, slightly phlegm, but no bloody sputum, chest pain and admission. There is no record of “tuberculosis” in me and at home. Examination: T: 39.8 ℃, pulse 88 beats / min, breathing 20 beats / min, blood pressure 12.0 / 9.3kPa. Expression indifferent, clear-cut, skin rash, yellow dye, bleeding, submandibular touch of 2 to 3 soybean size lymph nodes, good activity. No abnormal heart. Two lungs scattered in dry rales. Abdomen soft, no pressure