79 results
Autoantibodies in Rheumatology
 • Lupus (SLE): ANA (anti-nuclear antibody), dsDNA (double-stranded DNA), Anti-Smith, Anti-Ro (SSA) and
Autoantibodies in Rheumatology ... , Anti-Ro (SSA) ... and Anti-La (SSB ... Autoantibodies #Rheumatology ... #diagnosis #associations
I’M DAMN SHARP - Lupus Diagnosis Mnemonic
I  	 Immunoglobulins (Anti-dsDNA, Anti-Sm, Anti-phospholipid)
M 	 Malar Rash
D
SHARP - Lupus Diagnosis ... Immunoglobulins (Anti-dsDNA ... , Anti-Sm, Anti-phospholipid ... erythematosus #rheumatology ... #diagnosis #mnemonic
Systemic Sclerosis Associated Autoantibodies
Anti-topoisomerase I (anti-Sc170): Diffuse skin disease, Pulmonary fibrosis
Anti-centromere: Limited skin disease (~93-95%), Pulmonary
Autoantibodies Anti-topoisomerase ... I (anti-Sc170): ... Biliary Cirrhosis Anti-RNA ... Autoantibodies #diagnosis ... #rheumatology
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
- SLE Anti-histone ... - SLE Anti-SSA ... (Ro), Anti-SSB ( ... Associations #diseases #diagnosis ... #table #rheumatology
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Erythematosus - Diagnosis ... 5-10% - Anti- ... Differential Diagnosis ... Erythematosus #Diagnosis ... #differential #rheumatology
Inflammatory Myopathies
Dermatomyositis
 • Onset: Subacute
 • Pattern: Proximal
 • CK: Up to 50X ULN
 • Autoantibodies:
, anti-Mi-2, anti-TIF ... Associated Features: Diagnosis ... over years, often diagnosed ... #differential #diagnosis ... #comparison #rheumatology
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
Anti-dsDNA (in 70% ... Anti-Sm (Smith) ... Anti-histone (in ... Antineutrophil #antibodies #diagnosis ... #rheumatology #
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
Elevated CK, +Anti-Jo ... Elevated CK, +Anti-Jo ... , +Anti-Mi2 Polymyalgia ... #differential #diagnosis ... #comparison #rheumatology
Autoimmune Myositis
Necrotizing myopathy is associated with higher CK levels, greater level of muscle weakness, less systemic
/full triad at diagnosis ... Around half of anti-SRP ... and anti-HMGCR ... Autoimmune #Myositis #diagnosis ... #rheumatology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
Henoch-SchonIein Purpura Anti-GBM ... Limited to Kidney: Anti-GBM ... pulmonary involvement: Anti-GBM ... #differential #diagnosis ... #algorithm #rheumatology