5 results
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
pathophysiologic causes ... Post-strep GN, Lupus ... • Limited to Kidney ... Glomerulonephritis #Vasculitis ... #differential #diagnosis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... inflammation Others: • Lupus ... mucositis - Rash ... such as systemic lupus ... Kidneys -> glomerulonephritis
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
myalgia, serositis, Kidney ... NPSLE rare, Malar rash ... Discontinuation of causal ... sle #comparison #table ... #rheumatology #diagnosis
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
fires, heating pads ... Rash is usually ... of necrotizing vasculitis ... Erythemas #comparison #table ... #differential #diagnosis
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Diagnosis Framework ... musculoskeletal systems • Kidneys ... , mucositis • Rash ... tract, and often causes ... pain and GN Anti-GBM