36 results
Systemic Lupus Erythematosus - Summary
Antinuclear (ANA) - 95% - Initial screening test
Anti-dsDNA - 50%
 • Associated
Erythematosus - Summary Antinuclear ... block • Sjogren syndrome ... polymyositis overlap syndrome ... Summary #diagnosis #rheumatology ... #management
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
erythematosus (SLE ... erythematosus (SLE ... ), Sjogren's Syndrome ... Kumfer @AnnKumfer #Antinuclear ... ANA #patterns #rheumatology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
lymphohistiocytosis (HLH ... erythematosus [SLE ... 5000 to 10,000 ng/mL ... #Diagnosis #Management ... #Hematology #Rheumatology
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
ANA (Antinuclear ... in drug-induced SLE ... scleroderma) - Anti-Scl ... cases • Sjögren syndrome ... antibodies #diagnosis #rheumatology
Hemophagocytic Lymphohistiocytosis (HLH)
Pathophysiology: Triggering factor (infection,...)→Activation of CD8 T cells (IFN-y) → Excessive activation of macrophages
Ferritin >1000 ng/ml ... sIL-2R >2400 Ul/ml ... Autoimmune diseases: SLE ... Lymphohistiocytosis #diagnosis #management ... treatment #summary #rheumatology
Antinuclear Antibody Testing - Nuclear and Cytoplasmic Patterns
Nuclear Patterns:
 • Homogeneous pattern: 
   -
Antinuclear Antibody ... Smith, Sm/RNP, Scl ... Scl100, Th/To, Scl ... ARUPLabs #ANA #Antinuclear ... differential #diagnosis #rheumatology
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
Antinuclear antibodies ... Highly specific for SLE ... overlap syndromes ... Lupusreference #Antinuclear ... erythematosus #diagnosis #rheumatology
Autoantibodies in Rheumatology
 • Lupus (SLE): ANA (anti-nuclear antibody), dsDNA (double-stranded DNA), Anti-Smith, Anti-Ro (SSA) and
Autoantibodies in Rheumatology ... • Lupus (SLE): ... Antiphospholipid Antibody Syndrome ... LAC) • Sjogren Syndrome ... Autoantibodies #Rheumatology
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
Anticentromere - CREST syndrome ... Anti-Scl-70 - Scleroderma ... La) - Sjogren's syndrome ... Goodpasture's syndrome ... diagnosis #table #rheumatology
Raynaud Phenomenon Differential Diagnosis:

Rheumatologic

 - MCC systemic sclerosis, RA, SLE, Sjogren syndrome, Antisynthetase syndrome, MCTD
Heme

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Differential Diagnosis: Rheumatologic ... - MCC systemic ... sclerosis, RA, SLE ... , Sjogren syndrome ... Antisynthetase syndrome