11 results
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
ANA (Antinuclear ... Antibody) and ANCA ... #Antinuclear #Antibody ... #antibodies #diagnosis ... #rheumatology #
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Antinuclear Antibodies ... Rheumatic Diseases ... • Rheumatic Diseases ... #Antibodies #ANA ... #patterns #rheumatology
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
their Disease Associations ... ANA - Non-specific ... c-ANCA - Vasculitis ... granulomatosis p-ANCA ... #rheumatology #
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
ANA Patterns and ... Diseases: • Homogeneous ... connective tissue disease ... #Antibodies #ANA ... #patterns #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
disease, and ocular ... diseases, such ... ) pattern: antibodies ... , and SLE) • Urinalysis ... #rheumatology #
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
involvement: Anti-GBM Disease ... (C-ANCA): GPA > ... > eGPA • MPO-ANCA ... (P-ANCA): eGPA, ... #algorithm #rheumatology
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... Diseases • Septic ... antibody (ANA) test ... #Disease #Rheumatoid ... #testing #Rheumatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
rheumatic diseases ... disease, drug reactions ... most important diseases ... disease, and ocular ... #Rheumatology
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
Summary Autoimmune ANCA ... life-threatening diseases ... Inflammatory eye disease ... EGPA) • Auto-antibodies ... : ANCA antibody,
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• They can cause ... • Autoimmune diseases ... DDX: • ANCA (Antineutrophil ... cytoplasmic antibody ... classification #rheumatology