10 results
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
ANA (Antinuclear ... 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
Antinuclear Antibodies ... likely it will be clinically ... , Interstitial Pulmonary ... #Antibodies #ANA ... #diagnosis #differential
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
ANA Patterns and ... Associated Rheumatic Diseases ... connective tissue disease ... #Antibodies #ANA ... #diagnosis #differential
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
disease, and ocular ... (Granulomatous disease ... rheumatic diseases ... , and SLE) • Urinalysis ... differential #diagnosis
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
fever) and laboratory ... Diagnosis: • ANCA-associated ... tissue disease ... diseases (i.e. ... • (-) ANA + (+
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... rheumatic diseases ... most important diseases ... disease, and ocular ... #Differential #Diagnosis
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
Antinuclear antibodies ... Association with disease ... searched for when ANA ... with auto-immune diseases ... table #ANA
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
Systemic disease ... pathognomonic laboratory ... ) Differential Diagnosis ... • Nonsurgical abdominal ... signs #symptoms #rheumatology
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
multisystemic disease ... associated with other diseases ... demyelinating disease ... peripheral Thyroid Disease ... Tracheobronchial disease
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Studies in Rheumatic Diseases ... exclude inflammatory disease ... and RF (if clinical ... connective-tissue disease ... #Rheumatic #Disease