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

Immune Complex Mediated (granular staining):
Anti-GBM Disease (Goodpasture's ... (C-ANCA): GPA > ... > eGPA • MPO-ANCA ... (P-ANCA): eGPA, ... Glomerulonephritis #Vasculitis
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
vasculitis (Eosinophilic ... vasculitis (IgA-associated ... vasculitis, Behcet ... Basement Membrane: Goodpasture's ... testing: anti-ANCA
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
Graves' disease c-ANCA ... - Vasculitis, e.g ... granulomatosis p-ANCA ... - Vasculitis, e.g ... disease Anti-GBM - Goodpasture's
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
Classification of Vasculitis ... Vasculitis of ... small vessels - ANCA-associated ... vasculitis ... hepatitis C - Goodpasture
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Summary Autoimmune ANCA ... vasculitis (AAV ... Anti-basement membrane: Goodpasture ... palpable purpura 2/2 vasculitis ... Auto-antibodies: ANCA
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
/ Autoimmune: ANCA-Assoc ... vasculitis (GPA ... Cryoglobulinemia, Goodpasture's
ANCA-Associated Vasculitis
A group of necrotizing, small-vessel vasculitis without immune complex deposition. Complement levels are normal due
Vasculitis A group ... , small-vessel vasculitis ... Levamisole-induced vasculitis ... vasculitis - MPO ... #Associated #Vasculitis
A System for Vasculitides 

#Diagnosis #IM #Rheum #Vasculitis #Small #Medium #Large #Vessel #Size #Classification #ANCA #Differential
A System for Vasculitides ... Diagnosis #IM #Rheum #Vasculitis ... Classification #ANCA
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
: ANCA Associated ... - ANCA specific ... Granulomas - ANCA ... Granulomas - ANCA ... Vasculitis: + MPO-ANCA
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
Antibody) and ANCA ... Vasculitis: • ... 80-90%) > MPO - ANCA ... Renal-limited vasculitis ... Antinuclear #Antibody #ANCA