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Subclinical acquired syphilis masquerading as membranous glomerulonephritis

Z Soehardy1, S Nor Hayati, M Rozita

  • 1Department of Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia (UKM), Jalan Yaacob Latiff, Bandar Tun Rozak, 56000 Cheras, Kuala Lumpur, Malaysia.

The Medical Journal of Malaysia
|January 25, 2007
PubMed

Insights

Acquired syphilis can present as membranous glomerulonephritis (MGN), a kidney disease, even without typical syphilis symptoms. This case highlights the importance of considering syphilis in unexplained MGN diagnoses.

Area of Science:

  • Nephrology
  • Infectious Diseases
  • Immunology

Background:

  • Membranous glomerulonephritis (MGN) is a common cause of nephrotic syndrome in adults, often idiopathic but sometimes secondary to autoimmune diseases, infections, or medications.
  • Syphilis, a sexually transmitted infection, can lead to renal complications, including MGN, typically when untreated.
  • Advances in medicine and awareness of STIs have reduced acquired syphilis cases, which usually present with characteristic symptoms like chancres and rash.

Observation:

  • This report details a rare case of acquired syphilis that mimicked membranous glomerulonephritis.
  • The patient presented with renal symptoms characteristic of MGN but lacked the typical clinical manifestations of syphilis.

Findings:

  • The case demonstrates that acquired syphilis can present atypically, posing a diagnostic challenge.
  • Immune complex deposition in the subepithelial space, characteristic of MGN, was observed, but the underlying cause was syphilis.

Implications:

  • This case underscores the need for clinicians to consider syphilis in the differential diagnosis of membranous glomerulonephritis, especially in atypical presentations.
  • Increased awareness and diagnostic vigilance for syphilis are crucial, even in the absence of classic symptoms, to ensure timely and appropriate treatment.
  • Further research may elucidate the mechanisms by which syphilis induces membranous glomerulonephritis in such unusual presentations.

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