Atypical anti-GBM disease in pregnancy

BMJ Case Rep. 2024 Nov 19;17(11):e260284. doi: 10.1136/bcr-2024-260284.

Abstract

A woman in her 20s presented with nephrotic syndrome and hyperemesis in early pregnancy. Pertinent initial investigations revealed a severe acute kidney injury, a serum albumin of 19 g/L, a random protein creatinine ratio of 800 g/mol and microscopic haematuria. All immunological and infection serology testing including anti-glomerular basement membrane (anti-GBM; ELISA) were negative. Kidney biopsy demonstrated diffuse crescentic glomerulonephritis with cellular crescents involving >90% of glomeruli, with immunofluorescence demonstrating intense linear reactivity for IgG consistent with atypical anti-GBM glomerular nephritis. Early pregnancy termination and treatment with immunosuppression were chosen after shared decision-making between the patient and physician. The patient had a poor response to treatment and remained dialysis dependent 12 months later.

Keywords: Acute renal failure; Pregnancy.

Publication types

  • Case Reports

MeSH terms

  • Acute Kidney Injury / etiology
  • Adult
  • Anti-Glomerular Basement Membrane Disease* / diagnosis
  • Anti-Glomerular Basement Membrane Disease* / immunology
  • Anti-Glomerular Basement Membrane Disease* / therapy
  • Female
  • Humans
  • Immunosuppressive Agents / therapeutic use
  • Nephrotic Syndrome / diagnosis
  • Pregnancy
  • Pregnancy Complications* / diagnosis

Substances

  • Immunosuppressive Agents