Case Presentation: A 47-year-old woman with lupus presented with one week of urinary frequency and dysuria. Over the prior year, she had pelvic pain, night sweats, 20 pounds of unintentional weight loss, and eight episodes of pan-susceptible E. coli urinary tract infections (UTIs), each successfully treated. Her chronic medications were prednisone, hydroxychloroquine, and azathioprine.A computed [...]