18 results
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
ANA (Antinuclear ... connective tissue disease ... Microscopic polyangiitis ... antibodies #diagnosis #rheumatology ... #diseases
ANCA-Associated Vasculitis
A group of necrotizing, small-vessel vasculitis without immune complex deposition. Complement levels are normal due
ANCA-Associated ... polyangiitis (GPA), microscopic ... involvement - PR3>MPO Microscopic ... PR3 Anti-GBM disease ... PR3 #Diagnosis #Rheumatology
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Using fluorescence microscopy ... Disease! ... Rheumatic Diseases ... • Rheumatic Diseases ... #patterns #rheumatology
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
polychondritis, Behcet's Disease ... Nodosa (PAN), ANCA ... Diseases: IgG4- ... Related Disease ... Differential #Diagnosis #rheumatology
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
- Kawasaki disease ... small vessels - ANCA-associated ... granulomatosis - microscopic ... - systemic lupus ... Vessels #Diagnosis #Rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
): • Microscopic ... Vasculitis: + MPO-ANCA ... LFT • ESR • ANA ... Dx: GPA, EGPA, microscopic ... differential #diagnosis #rheumatology
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
ANA - Non-specific ... c-ANCA - Vasculitis ... granulomatosis p-ANCA ... Microscopic polyangiitis ... diagnosis #table #rheumatology
I’M DAMN SHARP - Lupus Diagnosis Mnemonic
I  	 Immunoglobulins (Anti-dsDNA, Anti-Sm, Anti-phospholipid)
M 	 Malar Rash
D
A Antinuclear ... Antibody (ANA) M ... cytopenias) A Arthritis ... R Renal Disease ... erythematosus #rheumatology
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Pauci-Immune: - ANCA-positive ... polyangiitis, Microscopic ... polyangiitis) - ANCA-negative ... testing: anti-ANCA ... , anti-GBM ab, ANA
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
ANA Patterns and ... Diseases: • Homogeneous ... connective tissue disease ... #Antibodies #ANA ... #patterns #rheumatology