10 results
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Antinuclear Antibodies ... Rheumatic Diseases ... ), Sjogren's Syndrome ... • Rheumatic Diseases ... #diagnosis #differential
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
ANA Patterns and ... Diseases: • Homogeneous ... ), Sjogren's Syndrome ... #Antibodies #ANA ... #diagnosis #differential
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
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
disease, and ocular ... rheumatic diseases ... LFT • ESR • ANA ... , and SLE) • Urinalysis ... 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
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... fever) and laboratory ... Diagnosis: • ANCA-associated ... vasculitis, rheumatoid ... Serositis Labs: • ANA
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
: • Clinical triad ... • Autoimmune diseases ... DDX: • ANCA (Antineutrophil ... (e.g. systemic lupus ... , Sjögren's syndrome
Sjogren's Syndrome Overview

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

Autoimmune exocrinopathy multisystemic disease
Sjogren's Syndrome ... multisystemic disease ... Syndrome Diagnosis ... demyelinating disease ... #Syndrome #Rheumatology
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
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

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