Multiple renal abscesses due to Proteus mirabilis
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IMAGES IN NEPHROLOGY
Multiple renal abscesses due to Proteus mirabilis Yasushi Kakuchi1 Received: 17 August 2020 / Accepted: 1 October 2020 © Japanese Society of Nephrology 2020
Keywords Renal abscess · Proteus mirabilis · Urinary stone A 35-year-old woman presented to the hospital with a 14-day history of fever (38–40 ℃) and abdominal pain. She had previously been healthy and was not pregnant. Mild and diffuse abdominal tenderness was noted on physical examination. A urinalysis showed leukocytes but no nitrites. Enhanced computed tomography of the abdomen showed multiple abscesses in the left kidney (Fig. 1a) with obstruction of urinary stones (Fig. 1b, circle). A ureteral stent was inserted
and antibiotics were injected. After the renal abscesses improved, the ureteral stent and stones were removed transurethrally. Renal abscess is a relatively rare disease, but it was considered that Proteus mirabilis produced urease, which precipitated the stones [1], which rapidly progressed from obstructive pyelonephritis due to ureteral stone incarceration to the formation of the multiple renal abscesses.
* Yasushi Kakuchi [email protected] 1
Department of Internal Medicine, Ishikawa-ken Saiseikai Kanazawa Hospital, Kanazawa 920‑0353, Japan
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Clinical and Experimental Nephrology
Fig. 1 Multiple renal abscesses (a) and the obstruction by urinary stones (b) were observed in the parenchymal nephrographic phase of enhanced computed tomography images. The contrast effect was reduced in the left kidney
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Reference
Conflict of interest All the authors have declared no competing interest.
1. Bichler KH, et al. Urinary infection stones. Int J Antimicrob Agents. 2002;19:488–98.
Ethical approval This article does not contain any studies with animals performed by any authors.
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Informed consent Informed consent was obtained from the patient.
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