11 results
Autoantibodies in Rheumatology
 • Lupus (SLE): ANA (anti-nuclear antibody), dsDNA (double-stranded DNA), Anti-Smith, Anti-Ro (SSA) and
Autoantibodies in ... Rheumatology • ... Lupus (SLE): ANA ... (cytoplasmic) ... diagnosis #associations
Antinuclear Antibody Testing - Nuclear and Cytoplasmic Patterns
Nuclear Patterns:
 • Homogeneous pattern: 
   -
• Reticular/AMA ... PBC/SjS OS - AMA ... ARUPConsult @ARUPLabs #ANA ... #differential #diagnosis ... #rheumatology
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
ANA (Antinuclear ... Antineutrophil cytoplasmic ... Jcortesizaguirr #ANA ... #antibodies #diagnosis ... #rheumatology #
Antinuclear Antibody Testing Cytoplasmic Patterns
Reticular/AMA: 
 • PBC, SSc, PBC/SSc OS, PBC/SjS OS
 • AMA
Speckled:
 •
Patterns Reticular/AMA ... PBC/SjS OS • AMA ... ARUPConsult @ARUPLabs #ANA ... #differential #diagnosis ... #rheumatology
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
aorta • Head ... serum lgE, no autoantibodies ... (antinuclear antibodies ... #management #phenotypes ... workup #treatment #rheumatology
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
searched for when ANA ... #autoantibodies ... erythematosus #diagnosis ... #rheumatology # ... table #ANA
Systemic Lupus Erythematosus - Summary
Antinuclear (ANA) - 95% - Initial screening test
Anti-dsDNA - 50%
 • Associated
Erythematosus - Summary Antinuclear ... (ANA) - 95% - Initial ... #SLE #Summary #diagnosis ... #rheumatology # ... management
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
Workup: - ANA ... of autoantibodies ... Workup: - ANA ... comparison #table #rheumatology ... #diagnosis #management
Drug Induced Lupus (DIL)
 • Epidemiology: -10% of all lupus cases, drug-dependent, 4:1 to 1:1 F:M
Workup: - ANA ... of autoantibodies ... DrugInduced #Lupus #DIL #rheumatology ... #diagnosis #treatment ... #management
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
• Anti-NXP2 (ANA ... -1 antibodies (ANA ... or head drop • ANA ... % IBM • Anti-cytoplasmic ... Mechanic's hands Autoantibodies