7 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 ... diagnosis #associations ... #table
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
context of other symptoms ... : The ANA patterns ... : Lupus (SLE), Systemic ... #rheumatology #diagnosis ... #differential
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
Antinuclear antibodies ... and Systemic lupus ... SLE-SSc-AlM overlap syndromes ... #Systemic #lupus ... #table #ANA
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
months) and of autoantibodies ... months to years) Systemic ... Evolution: Chronic disease ... sle #comparison #table ... #rheumatology #
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
lupus erythematosus ... Symptoms (Sx) in ... ) pattern: antibodies ... ) pattern: is usually ... #diagnosis #rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... • Anti-Ro/SSA autoantibodies ... permanent alopecia Differential ... Diagnosis: • ANCA-associated ... : • Symptoms limited
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Autoimmune Myositis - Differential ... (also seen in association ... slow onset and pattern ... Mechanic's hands Autoantibodies ... • Conduction system