Delayed seropositive lupus nephritis: a clinical dilemma

Area of Science:

• Immunology
• Nephrology
• Rheumatology

Background:

• Systemic lupus erythematosus (SLE) is a complex autoimmune disease affecting multiple organs.
• Lupus nephritis, a common complication, significantly increases morbidity and mortality.
• Accurate histological classification of lupus nephritis is essential for treatment.

Purpose of the Study:

• To report a case of lupus nephritis in a young woman with delayed seropositivity.
• To highlight the importance of vigilant follow-up in SLE management.
• To emphasize the need for monitoring medication side effects and disease progression.

Main Methods:

• Case report detailing a young female patient with lupus nephritis.
• Review of diagnostic markers including antinuclear antibody and anti-dsDNA.
• Consideration of histological classification (Classes IV and V) for lupus nephritis.

Main Results:

• The patient presented with lupus nephritis and delayed seropositivity, lacking other clinical SLE manifestations.
• Diagnostic tests like anti-dsDNA via Crithidia luciliae assay show high sensitivity and specificity for SLE.
• The case underscores the potential for SLE to present atypically.

Conclusions:

• Lupus nephritis requires careful histological assessment for effective management.
• Delayed seropositivity can occur in SLE, necessitating thorough clinical evaluation.
• Long-term patient monitoring is vital to mitigate complications like thromboses and manage treatment side effects.