一位89岁的男性患者，既往病史为转移性移行细胞癌，突然出现新的积水性肾盂积水和肾功能障碍，为高压慢性尿潴留所致。最近的尿液培养结果显示大肠埃希菌（E.coli）阳性。巧合的是，患者最初的主要症状是近期低速度外伤后的右肩疼痛。X线显示肩关节内有空气密度，磁共振成像（MRI）确认为化脓性关节炎特征。进行了手术清创，并通过组织显微镜检查和培养确认埃希菌存在，证实为泌尿系感染播散性疾病的诊断。 © 2023 The Authors. Published by Elsevier Inc.

An 89-year-old male with a background of metastatic transitional cell carcinoma presented acutely with new hydronephrosis and deranged renal function secondary to high pressure chronic urinary retention. A recent urine culture was positive for Escherichia coli (E.coli). Co-incidentally, the patient's primary presenting symptom was right shoulder pain following recent low velocity trauma. X-ray demonstrated air density within the glenohumeral joint, with Magnetic Resonance Imaging (MRI) confirming features of septic arthritis. Surgical debridement was undertaken with tissue microscopy and culture identifying the presence of E. coli, confirming the diagnosis of disseminated urinary tract infection.© 2023 The Authors. Published by Elsevier Inc.