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Currently filtering by tag: Class IV

Lupus Nephritis (Class IV)

A 20-year-old female presents with hematuria, proteinuria, and a creatinine of 1.2 mg/dl. Serologies for ANA are positive. Complement levels are decreased. She states that auto-immune disease runs in her family, but is unsure about any specific diagnosis. Serologies for dsDNA, SSA, SSB, rheumatoid factor, hepatitis B, hepatitis C, and HIV are pending. Figure 1 shows mesangial and endocapillary hypercellularity with prominent "hyaline thrombi." Figure 2 shows no significant interstitial fibrosis. Figure 3 shows "wire loops" and no "spikes" and "holes." Figure 4, Figure 5, and Figure 6 shows mesangial and capillary staining with IgG, kappa, and lambda, respectively. Figure...