Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
CASE REPORTS
IgA-dominant Postinfectious Glomerulonephritis Associated with Escherichia coli Infection Caused by Cholangitis
Hiroaki Kikuchi, Makoto Aoyagi, Kiyotaka Nagahama, Chisato Yamamura, Yohei Arai, Suguru Hirasawa, Shota Aki, Naoto Inaba, Hiroyuki Tanaka, Teiichi Tamura
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Keywords: rapidly progressive glomerulonephritis, Escherichia coli, cholangitis
JOURNAL OPEN ACCESS

2014 Volume 53 Issue 22 Pages 2619-2624

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Abstract

A 76-year-old man with a history of type 2 diabetes mellitus was admitted with cholangitis caused by cholangiocarcinoma. Cholangitis with Escherichia coli (E. coli) bacteremia recurred due to the unstable bile drainage. At 1 month after recurrence, rapidly progressive glomerulonephritis with nephrotic syndrome was manifested. Renal biopsy findings were consistent with immunoglobulin A (IgA)-dominant postinfectious glomerulonephritis (PIGN). After ensuring that the recurrent cholangitis was controlled by drainage and antibiotic therapy, oral prednisolone was initiated, and the patient's renal function and proteinuria subsequently gradually improved. This is the first case report of IgA-dominant PIGN associated with cholangitis caused by E. coli infection.

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© 2014 by The Japanese Society of Internal Medicine
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