14 results
Myositis Specific Antibodies (MSAs)

Dermatomyositis: MDA5, TIF1y, NXP2, Mi-2, SAE
Anti-Synthetase Syndrome: Jo-1, PL7, PL12, EJ, OJ
Immune Mediated
Antibodies (MSAs ... , TIF1y, NXP2, Mi ... #Specific #Antibodies ... clinical #diagnosis #rheumatology ... #table
Autoantibodies in Rheumatology
 • Lupus (SLE): ANA (anti-nuclear antibody), dsDNA (double-stranded DNA), Anti-Smith, Anti-Ro (SSA) and
Autoantibodies in Rheumatology ... others (RNP, aPL antibodies ... Peptide (CCP) • Myositis ... , Others: SRP, Mi ... #associations #table
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Antinuclear Antibodies ... Antibody refers to antibodies ... Sjögren Syndrome, Myositis ... #Antinuclear #Antibodies ... ANA #patterns #rheumatology
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
Autoantibodies and their Disease ... (TTG) - Celiac disease ... #diagnosis #table ... #rheumatology # ... antibodies
Systemic Lupus Erythematosus - Diagnosis
Manifestations:
 - Arthritis 69%
 - Malar rash 40%
 - Fever 36%
 -
anemia 4% - Myositis ... SLE-Related Auto-Antibodies ... auto-immune, Infectious diseases ... sclerosis, Still's disease ... #differential #rheumatology
Inflammatory Myopathies
Dermatomyositis
 • Onset: Subacute
 • Pattern: Proximal
 • CK: Up to 50X ULN
 • Autoantibodies:
Anti-MDA5, anti-Mi ... Necrotizing Autoimmune Myositis ... Inclusion Body Myositis ... diagnosis #comparison #rheumatology ... #table
Transverse Myelitis Overview

Focal inflammatory disorder of the spinal cord resulting in rapid onset of weakness, sensory
super-antigen mediated disease ... cord compression (MRI ... Pallidum - Lyme Disease ... MCTD - Bechet disease ... Antiamphiphysin antibodies
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
Antinuclear antibodies ... Association with disease ... with auto-immune diseases ... erythematosus #diagnosis #rheumatology ... #table #ANA
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
Non-autoimmune rheumatologic ... • Transverse Myelitis ... 1, SCL-70, RNP antibodies ... anticardiolipin antibodies ... Erythematosus #Diagnosis #Rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Conjunctivitis, mucositis ... (Granulomatous disease ... atherosclerotic disease ... C-ANCA) pattern: antibodies ... differential #diagnosis #rheumatology