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Membranous glomerulonephritis and malignancy

D M Burstein1, S M Korbet, M M Schwartz

  • 1Department of Medicine, Rush Medical College, Chicago, IL.

American Journal of Kidney Diseases : the Official Journal of the National Kidney Foundation
|July 1, 1993
PubMed
Summary
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Membranous glomerulonephritis (MGM) is clearly associated with cancer. In this study, 10.3% of patients with presumed idiopathic MGM were diagnosed with malignancy, often presenting with proteinuria before cancer diagnosis.

Area of Science:

  • Nephrology
  • Oncology

Background:

  • Membranous glomerulonephritis (MGM) is a kidney disease characterized by nephrotic-range proteinuria.
  • The association between MGM and malignancy has been debated, with some studies minimizing its significance.

Purpose of the Study:

  • To investigate the association between membranous glomerulonephritis and neoplasia.
  • To enhance clinical awareness and provide diagnostic recommendations regarding this association.

Main Methods:

  • Retrospective analysis of 107 adult patients with biopsy-proven membranous glomerulonephritis.
  • Clinical data review to determine the onset of renal disease relative to malignancy diagnosis and patient outcomes.

Main Results:

  • Nine out of 87 patients (10.3%) with presumed idiopathic MGM had or developed associated malignancy.

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  • Proteinuria preceded or coincided with cancer diagnosis in approximately 80% of cases.
  • Tumor treatment led to complete proteinuria remission in two patients; one developed end-stage renal disease.

    • Conclusions:

    • A clear association exists between membranous glomerulonephritis and neoplasia.
    • Early detection of malignancy is crucial in patients presenting with nephrotic-range proteinuria.
    • Further research is warranted to elucidate the mechanisms underlying this association.