患者,男,39岁。因畏寒发热伴左腰部胀痛20天急诊入院。20天来反复畏寒发热,体温高达39℃,左腰部胀痛渐加重,抗感染治疗无好转。体检:T38.7℃,BP16/10kPa,营养中等,浅表淋巴结不大,心肺阴性,腹平坦,左中腹扪及一6cm×4cm包块,表面欠光滑,固定,有压痛,腹部移动性浊音阴性,肠鸣音不亢进,左腰部饱满,压痛明显并有叩击痛。血白细胞15.2×10~9/L,N80％,L20％,ESR51mm/h。B超、CT均示左肾周脓肿。在连硬麻醉下行左肾周脓肿切开引流术。术中见脓腔呈多房性,脓液淡黄色较稠厚,约 Patient, male, 39 years old. Because of chills and fever with left waist pain 20 days in an emergency admission. After 20 days of repeated chills and fever, the body temperature was as high as 39°C, and the pain in the left lower back became worse. There was no improvement in anti-infective treatment. Physical examination: T38.7°C, BP16/10kPa, moderate nutrition, superficial lymph nodes, negative heart and lungs, flat abdomen, left mid-abdominal hernia, and a 6cm×4cm mass, the surface is less smooth, firm, tender, abdominal dullness Negative, bowel sounds do not hyperthyroidism, full left waist, tenderness and tenderness. White blood cells 15.2 × 10~9/L, N80%, L20%, ESR51mm/h. B-ultrasonography and CT showed left renal abscess. The perirenal abscess was incised and drained under hard anesthesia. Seen in the surgery, the abscess was multi-room, and the pus was yellowish and thick.