患者男,39岁,因“胰腺癌胰十二指肠切除术后7个月伴发热3周”入院。入院前3周患者无明显诱因出现发热,午后明显,体温38～39℃。最高达40．2℃,伴寒战。入院体检：体温38．4℃,皮肤巩膜无黄染,腹软无压痛,肝脾肋下未及,腹部未扪及肿物。实验室检查：白细胞4．5×10~9/L,中 Male, 39 years old, was admitted to hospital for “seven months after pancreas cancer pancreatoduodenectomy with fever for 3 weeks.” 3 weeks before admission, no obvious incentive for patients with fever, significant afternoon, body temperature 38 ~ 39 ℃. Up to 40.2 ℃, with chills. Admission medical examination: body temperature 38.4 ℃, skin sclera no yellow dye, soft abdominal tenderness, liver and spleen ribs, the abdomen not palpable mass. Laboratory tests: white blood cells 4.5 × 10 ~ 9 / L, in