Background: Retroperitoneal infection is a persistent and widespread infectious disease that is difficult to treat. It is usually caused by secondary complications such as inflammation, damage, or perforation of adjacent organs in the retroperitoneal space. Pathogenic bacteria invade the retroperitoneal space through retroperitoneal and interstitial organs, peripheral tissue, and the blood. As a result, infections mostly arise from severe acute pancreatitis, acute colonic diverticulitis, inflammatory bowel disease, kidney abscess, and biliary tract injury. Initially manifested by the presence of lumbago, this disease spreads easily, is persistent, and is often misdiagnosed.

中文翻译：

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腹膜后感染的诊治

背景：腹膜后感染是一种难以治疗的持续性和广泛性传染病。它通常是由继发性并发症引起的，如腹膜后间隙邻近器官的炎症、损伤或穿孔。病原菌通过腹膜后和间质器官、外周组织和血液侵入腹膜后间隙。因此，感染多由重症急性胰腺炎、急性结肠憩室炎、炎症性肠病、肾脓肿和胆道损伤引起。这种疾病最初表现为腰痛，容易传播，持续存在，并且经常被误诊。