12 results
Autoantibodies in Rheumatology
 • Lupus (SLE): ANA (anti-nuclear antibody), dsDNA (double-stranded DNA), Anti-Smith, Anti-Ro (SSA) and
Autoantibodies in ... Rheumatology • ... others (RNP, aPL antibodies ... diagnosis #associations ... #table
Myositis Specific Antibodies (MSAs)

Dermatomyositis: MDA5, TIF1y, NXP2, Mi-2, SAE
Anti-Synthetase Syndrome: Jo-1, PL7, PL12, EJ, OJ
Immune Mediated
Antibodies (MSAs ... #Specific #Antibodies ... MSAs #clinical #diagnosis ... #rheumatology # ... table
Inflammatory Myopathies
Dermatomyositis
 • Onset: Subacute
 • Pattern: Proximal
 • CK: Up to 50X ULN
 • Autoantibodies:
Associated Features: Diagnosis ... over years, often diagnosed ... #differential #diagnosis ... #comparison #rheumatology ... #table
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
Autoantibodies and ... Goodpasture's syndrome #Autoantibodies ... Associations #diseases #diagnosis ... #table #rheumatology ... #antibodies
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
Antinuclear antibodies ... #autoantibodies ... erythematosus #diagnosis ... #rheumatology # ... table #ANA
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Erythematosus - Diagnosis ... anemia 4% - Myositis ... SLE-Related Auto-Antibodies ... #autoantibodies ... #differential #rheumatology
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Antinuclear Antibodies ... Sjögren Syndrome, Myositis ... Kumfer @AnnKumfer #Antinuclear ... #patterns #rheumatology ... #diagnosis #differential
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
PET-CT Imaging (→ Diagnostic ... serum lgE, no autoantibodies ... (antinuclear antibodies ... Related #Disease #diagnosis ... workup #treatment #rheumatology
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
ab • RF • Antinuclear ... antibodies ≥ 1: ... neuropathy, transverse myelitis ... • 8%-27% for CNS ... Sjogrens #Syndrome #Rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
• Anti-Ro/SSA autoantibodies ... Differential Diagnosis ... and CNS • Headache ... • Transverse Myelitis ... #Rheumatology