20 results
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
disease (MCTD), Drug-induced ... Lupus, Juvenile ... Kumfer @AnnKumfer #Antinuclear ... ANA #patterns #rheumatology ... #diagnosis #differential
Seronegative Inflammatory Arthritis - Differential Diagnosis
 • Seronegative Rheumatoid Arthritis 
 • Infectious Arthritis: Viral, Bacterial,
Inflammatory Arthritis - Differential ... Disease: Systemic Lupus ... Crystal Arthropathy: Gout ... #arthritides #Differential ... #Diagnosis #rheumatology
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Antinuclear Antibodies ... disease (MCTD), Drug-induced ... Kumfer @AnnKumfer #Antinuclear ... ANA #patterns #rheumatology ... #diagnosis #differential
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
Antinuclear antibodies ... and Systemic lupus ... SLE (60-70%) & drug-induced ... Lupusreference #Antinuclear ... erythematosus #diagnosis #rheumatology
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
ANA (Antinuclear ... ) • Systemic lupus ... Anti-histone (in drug-induced ... Jcortesizaguirr #ANA #Antinuclear ... antibodies #diagnosis #rheumatology
Lupus Classification
Spontaneous Lupus
 - Cutaneous Lupus Erythematosus (CLE)
 - Systemic Lupus Erythematosus 
Drug-Induced Lupus
 - Drug-Induced
Erythematosus Drug-Induced ... Lupus - Drug-Induced ... (SCLE-DIL) - Drug-Induced ... erythematosus #rheumatology ... #diagnosis #differential
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
Systemic Lupus Erythematosus ... (aPL) 30-45% Differential ... Mimickers: Drug-induced ... symptoms #mimickers #differential ... #rheumatology
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
HIV viral load Drug-induced ... Anti-retrovirals, Gemcitabine Lupus ... uncommon 5-15% of lupus ... Myopathies #myopathy #differential ... diagnosis #comparison #rheumatology
Diagnostic Framework for Hemolysis - Intravascular vs Extravascular Causes
Intravascular Hemolysis:
 • Mechanical Trauma (Microangiopathic hemolytic anemia):
usually IgG) (e.g. lupus ... infection) - Drugs ... Extravascular #Causes #differential ... #diagnosis #hematology
Drug Induced Systemic Lupus Erythematosus
> 100 drugs have been associated with drug-induced SLE
High risk (>5%):
 •
Lupus Erythematosus ... SLE #Systemic #Lupus ... #pharmacology # ... risk #differential ... #diagnosis #rheumatology