157 results
Myositis Specific Antibodies (MSAs)

Dermatomyositis: MDA5, TIF1y, NXP2, Mi-2, SAE
Anti-Synthetase Syndrome: Jo-1, PL7, PL12, EJ, OJ
Immune Mediated
Myositis Specific Antibodies ... (MSAs) Dermatomyositis ... Myositis #Specific #Antibodies
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
, Polymyositis/Dermatomyositis ... #Antinuclear #Antibodies
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
Antineutrophil cytoplasmic antibodies ... Polymyositis and dermatomyositis ... Antineutrophil #antibodies
Dermatomyositis (DM) and Polymyositis (PM): Pathogenesis and clinical findings
Elevated Antinuclear Antibodies: Anti-Jo-1, Anti-OJ, Anti-Mi2, Anti-SRP, Anti-EJ,
Dermatomyositis ... Elevated Antinuclear Antibodies ... flexors affected #Dermatomyositis
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
Polymyositis / Dermatomyositis ... #rheumatology #antibodies
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
levels • EMG DERMATOMYOSITIS ... 140 (amyopathic dermatomyositis ... cancer-associated adult dermatomyositis ... of the time) Dermatomyositis ... association with dermatomyositis
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Antinuclear Antibodies ... Antibody refers to antibodies ... , Polymyositis/Dermatomyositis ... #Antinuclear #Antibodies
Anti-NXP-2 Dermatomyositis

What?
DM with generalized subcutaneous edema
Pts have more myalgias, more severe weakness, and an increased prevalence
Anti-NXP-2 Dermatomyositis ... dysphagia than dermatomyositis ... • Antibodies targeting ... Features of Anti-NXP2 Dermatomyositis ... AntiNXP2DM #AntiNXP2 #Dermatomyositis
Statin Induced Muscle Toxicity - Summary

Clinical Presentation:
 • Elevations of serum creatine kinase with proximal myalgia
polymyositis, dermatomyositis ... myopathy (IMNM) → Antibodies
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
Still disease, dermatomyositis ... 1, SCL-70, RNP antibodies ... anticardiolipin antibodies