7 results
Autoantibodies in Rheumatology
 • Lupus (SLE): ANA (anti-nuclear antibody), dsDNA (double-stranded DNA), Anti-Smith, Anti-Ro (SSA) and
Lupus (SLE): ANA ... • Scleroderma (Systemic ... : P-ANCA (perinuclear ... ), C-ANCA (cytoplasmic ... #associations #table
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Systemic Lupus Erythematosus ... Auto-Antibodies: - ANA ... Lupus Mimickers ... #signs #symptoms ... #rheumatology
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
: - ANA > ... of autoantibodies ... months to years) Systemic ... : - ANA > ... #table #rheumatology
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
Systemic lupus ... searched for when ANA ... SLE-SSc-AlM overlap syndromes ... #Systemic #lupus ... #table #ANA
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Others: • Lupus ... Symptoms (Sx) in ... purpura: strong sign ... LFT • ESR • ANA ... differential #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 ... Diagnosis: • ANCA-associated ... : • Symptoms limited ... antibodies • (-) ANA
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 ... Mechanic's hands Autoantibodies ... • Conduction system