Disseminated E. coli urinary tract infection resulting in septic arthritis of the glenohumeral joint

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.