9 results
Autoantibodies in Rheumatology
 • Lupus (SLE): ANA (anti-nuclear antibody), dsDNA (double-stranded DNA), Anti-Smith, Anti-Ro (SSA) and
Rheumatology • ... Lupus (SLE): ANA ... Antiphospholipid Antibody Syndrome ... LAC) • Sjogren Syndrome ... diagnosis #associations
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
: The ANA patterns ... lupus erythematosus ... Syndrome (SS), ... Arthritis, Sjögren Syndrome ... #rheumatology #diagnosis
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Systemic Lupus Erythematosus ... - Diagnosis Manifestations ... : - ANA 95-100% ... #signs #symptoms ... #differential #rheumatology
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
and Systemic lupus ... searched for when ANA ... overlap syndromes ... #diagnosis #rheumatology ... #table #ANA
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... ACLE) • Erythematous ... lymphoma • Evans' syndrome ... Shrinking lung syndrome ... #Diagnosis #Rheumatology
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
Workup: - ANA ... Lupus Erythematosus ... Workup: - ANA ... #sle #comparison ... #table #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Syndrome: - Recurrent ... • Cogan Syndrome ... lupus erythematosus ... ) pattern: antibodies ... #rheumatology #
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
(ANA present 80% ... Antisynthetase syndrome ... or head drop • ANA ... paraneoplastic syndrome ... #Myopathy #rheumatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
diseases, such as SLE ... Mucocutaneous lymph node syndrome ... syndrome: Recurrent ... vasculitis • Cogan syndrome ... #Rheumatology