12 results
Autoantibodies in Rheumatology
 • Lupus (SLE): ANA (anti-nuclear antibody), dsDNA (double-stranded DNA), Anti-Smith, Anti-Ro (SSA) and
Lupus (SLE): ANA ... others (RNP, aPL antibodies ... • Scleroderma (Systemic ... : P-ANCA (perinuclear ... #table
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
Autoantibodies and ... ANA - Non-specific ... c-ANCA - Vasculitis ... granulomatosis p-ANCA ... #diagnosis #table
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
) • Systemic lupus ... connective tissue disease ... 90% • Anti-GBM disease ... #antibodies #diagnosis ... diseases
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Positive ANAAutoimmune ... (SLE), Systemic ... : Lupus (SLE), Systemic ... , Myositis, Mixed ... #rheumatology #diagnosis
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Systemic Lupus Erythematosus ... : - ANA 95-100% ... auto-immune, Infectious diseases ... sclerosis, Still's disease ... #Systemic #Lupus
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... tissue disease ... rheumatologic diseases ... • (-) ANA + (+ ... #Systemic #Lupus
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
and Systemic lupus ... Association with disease ... with auto-immune diseases ... #Systemic #lupus ... table #ANA
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
: - ANA > ... : - ANA > ... Evolution: Chronic disease ... #sle #comparison ... #table #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
(Granulomatous disease ... diseases, such ... as systemic lupus ... atherosclerotic disease ... LFT • ESR • ANA
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
diseases: - 10% ... SLE or RA - 5 ... DDX: • ANCA (Antineutrophil ... lupus erythematosus ... classification #rheumatology