23 results
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
antibodies) • Systemic ... lupus erythematosus ... cases • Sjögren syndrome ... Antineutrophil #antibodies #diagnosis ... #rheumatology #
Autoantibodies in Rheumatology
 • Lupus (SLE): ANA (anti-nuclear antibody), dsDNA (double-stranded DNA), Anti-Smith, Anti-Ro (SSA) and
ANA (anti-nuclear ... • Scleroderma (Systemic ... Polymerase Ill • ANCA ... perinuclear), C-ANCA ... #diagnosis #associations
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
ANA Patterns and ... SLE), Sjogren's Syndrome ... Antinuclear #Antibodies #ANA ... #patterns #rheumatology ... #diagnosis #differential
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Pauci-Immune: - ANCA-positive ... polyangiitis) - ANCA-negative ... lupus erythematosus ... testing: anti-ANCA ... , anti-GBM ab, ANA
Paraproteinemias

Entities That Can Feature A Monoclonal Protein/M Component:
• MM
• WM
• MGUS
• MGCS
• MGRS
• Splenic Marginal Zone
Hypergammaglobulinemic macular ... to cold IgG • Lupus ... , retinal, DVT, ... Paraproteinemias #Hematology ... #Differential #Diagnosis
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
• +ANA can be seen ... SLE), Sjogren's Syndrome ... Arthritis, Sjögren Syndrome ... #patterns #rheumatology ... #diagnosis #differential
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential Diagnosis ... ocular inflammation ... Others: • Lupus ... lupus erythematosus ... #rheumatology #
I’M DAMN SHARP - Lupus Diagnosis Mnemonic
I  	 Immunoglobulins (Anti-dsDNA, Anti-Sm, Anti-phospholipid)
M 	 Malar Rash
D
M DAMN SHARP - Lupus ... Antinuclear Antibody (ANA ... Arthritis R Renal ... IMDAMNSHARP #sle #systemic ... #rheumatology #
Systemic Lupus Erythematosus - Summary
Antinuclear (ANA) - 95% - Initial screening test
Anti-dsDNA - 50%
 • Associated
Systemic Lupus Erythematosus ... Antinuclear (ANA ... severe disease & renal ... #SLE #Summary #diagnosis ... #rheumatology #
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
central nervous system ... small vessels - ANCA-associated ... lupus erythematosus ... #Rheumatology # ... Diagnosis