7 results
Autoantibodies in Rheumatology
 • Lupus (SLE): ANA (anti-nuclear antibody), dsDNA (double-stranded DNA), Anti-Smith, Anti-Ro (SSA) and
Lupus (SLE): ANA ... Peptide (CCP) • Myositis ... • Scleroderma (Systemic ... diagnosis #associations ... #table
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
overlap syndromes ... #Antinuclear #autoantibodies ... #Systemic #lupus ... erythematosus #diagnosis #rheumatology ... #table #ANA
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Systemic Lupus Erythematosus ... anemia 4% - Myositis ... #Systemic #Lupus ... #signs #symptoms ... #differential #rheumatology
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
Constitutional symptoms ... months) and of autoantibodies ... months to years) Systemic ... : Chronic disease ... #table #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 ... #Systemic #Lupus
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
lupus erythematosus ... Symptoms (Sx) in ... purpura: strong sign ... vasculitis, and SLE ... differential #diagnosis #rheumatology
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
) • Shawl sign ... (also seen in association ... Mechanic's hands Autoantibodies ... • Conduction system ... #Myopathy #rheumatology