case report

Hepatitis B Virus-Related Membranous Nephropathy Superimposed on Crescentic Nephritis Induced by ANCA Associated Vasculitis

Song Wang1, Hai-Jing Liu2,Wen Tang1*

1Departmentof Nephrology, Peking University Third Hospital, Beijing, China

2Department of Pathology, Peking University School of Basic Medical Sciences, Beijing, China

*Corresponding author: Wen Tang, Department of Nephrology, Peking University Third Hospital, 49 North Garden Rd, Haidian District, Beijing 100191, P.R.China. Tel: +861082265628; Fax: +861082265628; Email:

Received Date: 12 November, 2017; Accepted Date: 04 December, 2017; Published Date: 11 December, 2017


Citation:Wang S, Liu H-J,Tang W,(2017) Hepatitis B Virus-Related Membranous Nephropathy Superimposed on Crescentic Nephritis Induced by ANCA Associated Vasculitis. J Urol Ren Dis 2017166. DOI: 10.29011/2575-7903.000166


1.      Abstract

We reported a case of acute renal failure and the patient was diagnosed to have ANCA associated vasculitis during admission. Renalpathologicalfunding showedthat the patients had hepatitis B virus-related membranous nephropathy superimposed on crescentic nephritis induced by ANCA associated vasculitis. Methylprednisolone pulse treatment and cyclophosphamide were given to the patient. The patient showed a decreased serum creatinine and remission of proteinuria without signs of recurrent of hepatitis B. 

1.      Introduction

Some recent research has been focusing on the association between membranous nephropathy and crescentic nephritis[1]. According to this study, membranous nephropathy could be connected with crescenticnephritis by anti-GBM antibody,with anti-GBM antibody appeared before or after membranousnephropathy or detected at the same time[1]. Interestingly, some cases with membranous nephropathy and vasculitis glomerulonephritis have also been reported[2].Membranous nephropathy is the most common form of HBV-relatednephropathy[3]. To our knowledge, only two cases have been reported that HBV-related nephropathy transformed to crescentic nephritis[4,5]. In the present case report, we presented a case with HBV-related membranous nephropathy concurrent with crescentic nephritis induced by ANCA associated vasculitis.

2.      Case Report

A 64-year-old man was admitted to hospital because of malasia, and edema of lower extremities with elevated serum creatinine level of 255µmol/LeGFR= 22ml/min/1.73m2. The patient had been well until 1 month earlier, when edema of the lower extremities developed. Patient has a history of smoking and chronic pulmonary disease was diagnosis when admitted. The serum creatinine level was normal three months before admitting. There was no history of preceding infection especially hepatitis. His blood pressure was 150/90mmHg. Physical examination revealed sighs of pulmonary emphysema and pitting edema in both legs. Urinalysis showed 2+ protein and urinary sediment showed the 25-30 red cell and 10-15 blood cellper high power field. A complete blood count showed mild anemia with hemoglobin level of 100g/L. Serum albumin was 32g/L. The 24-hour urinary protein excretion was 5.3g. Serologic evaluation revealed HBsAb and HBcAb positive but both the HBsAg and HBeAg were negative.HBV DNA was lower than 103 copies. Antibody to hepatitis C was negative. AST and ALT were normal. Perinuclear ANCA were positive with anti-MPO titer of 178.3 RU/ml and anti-PR3 was negative. Anti-GBM, anti-nuclear antibody, anti-DNA antibody were negative. ESR was 77mm/hr and CRP was 1.31g/L.

A percutaneous renal biopsy was performed which revealed atypical membranous nephropathy with HBsAg and HBcAg deposit and crescentic nephritis. In light microscopy, renal biopsy tissue contains 17 glomeruli1 of which are ischemic sclerosed. 2 cellular crescents and 9 fibrotic cellular crescents are observed. The glomerular basement membranes are diffusely thickened. The mesangium shows eosinophilic deposit material in mesangialarea with mild and diffusely mesangial expansion. Endothelial proliferation is detected. In immunofluorescence, 5 glomeruli, IgG(++),IgA(+),IgM(+),C3(+++),FRA(-),C1q(-)HBSAg(+),HBcAg(+) deposit in mesangial area and capillary loop. In electron microscopy, the glomerular basement membranes are thickened due to subepithelial and encircled subepithelial electron dense deposits. The overlying foot processes are diffusely effaced.

Given that of perinuclear ANCA was positive and anti-MPO titer was high, the pathological diagnosis of HBV-related membranous nephropathy with crescent nephritis induced by ANCA associate vasculitis was made. In view of the crescentic nephritis and the acute deterioration of the renal function, intravenous pulsemethylprednisolone (500 mg/day for three days) was given to the patient. The patient response well to this therapy with serum creatinine significantly declined. Another two rounds of pulse methylprednisolone500 mg/day for three days )(seven days between the first and second round and three days between the second and third round of methylprednisolonewere given and oral methylprednisone 48mg daily were initiated consequently. Intravenous cyclophosphamide 800mg per month was given. After seven months of treatment, the serum creatinine of patient decreased from maximum 372µmol/L (eGFR=14 ml/min/1.73m2) to 189µmol/L(eGFR=32 ml/min/1.73m2) and remained stable. 24 hours urinary total protein was 1.4 to 2.5g and serum albumin was 35.1g/L. No sigh of recurrence of Hepatitis B were detected with the liver function remained stable and HBV DNA was lower than 103copies. ANCA was negative.

3.      Discussion

Crescents are rare in primary membranous nephropathy. Recent study pointed out that in some patients with membranous nephropathy and crescents, the crescentic lesion may be due to anti-glomerular basement membrane antibodies or antineutrophil cytoplasmic antibodies-related pauci-immune glomerulonephritis[1,6]. On the other hand, membranous nephropathy is the most common form of HBV-related membranous nephropathy[3]. Two cases with HBV-related membranous nephropathy have been reportedto transform to crescentic nephritis[4,5]. However, in those cases, ANCA were negative. To our knowledge, our case is the first one that was reported to have HBV-related membranous nephropathy as well as crescentic nephritis induced by ANCA associate vasculitis.

Almost all cases of hepatitis B-associated nephropathy are of membranous nephropathy and a few patients with mesangial proliferative glomerulonephritis have also been described[7]. Clinically,most patients with HBV-related nephropathy present with proteinuria or the nephrotic syndrome and the majority of patients have normal renal function at time of presentation. In our case, the patients presented with nephritic syndrome but rapid deteriorate of renal function with the pathologic funding showed no sign of mesangial proliferative glomerulonephritis but crescentic nephritis. After immunosuppressant treatment, the patients renal function wasstable, and proteinuria were remission, which indicated that the AAV were the predominant culprit of renal damage of this patient. However, in view of the depositionthe HBV antigen in the kidney, HBV-DNA and hepatic enzymes were monitored. The patient’sliver function remained stable during the follow-up.In conclusion, to our knowledge, this is the first case that has been reported to haveHepatitis B virus-related membranous nephropathy superimposed on crescentic nephritis induced by ANCA associated vasculitis. Our findingextends of the spectrum of coexist forms of HBV induced membranous nephropathy and crescentic nephritis.

This study was supported by

Grant from Chinese Society of Nephrology (No. 1405046058), Fund of Peking University Third Hospital (76496-03) and Fund from Peking University (BMU20160584)

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6.       James SH, Lien YH, Ruffenach SJ, Wilcox GE (1995) Acute renal failure in membranous glomerulonephropathy: a result of superimposed crescentic glomerulonephritis. J Am Soc Nephrol 6: 1541-1546.

7.       Venkataseshan VS, Lieberman K, Kim DU, Thung SN, Dikman S, et al. (1990) Hepatitis-B-associated glomerulonephritis: pathology, pathogenesis, and clinical course. Medicine 69: 200-216.

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Journal of Urology and Renal Diseases