15 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 ... , TIF1y, NXP2, Mi ... #clinical #diagnosis ... #rheumatology # ... table
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Antinuclear Antibodies ... Antibody refers to antibodies ... but often not specific ... ANA #patterns #rheumatology ... #diagnosis #differential
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
Autoantibodies and their Disease ... Associations ANA - Non-specific ... #diagnosis #table ... #rheumatology # ... antibodies
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 ... erythematosus #diagnosis ... #rheumatology # ... table #ANA
Autoantibodies in Rheumatology
 • Lupus (SLE): ANA (anti-nuclear antibody), dsDNA (double-stranded DNA), Anti-Smith, Anti-Ro (SSA) and
others (RNP, aPL antibodies ... , Others: SRP, Mi ... • Scleroderma (Systemic ... #diagnosis #associations ... #table
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
IgG4-Related Disease ... female, asian • Systemic ... and relapse No specific ... autoantibodies (antinuclear antibodies ... workup #treatment #rheumatology
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
lgE antibodies ... When the specific ... during hemolytic disease ... Pathophysiology #Allergy #Diagnosis ... #Reactions #Table
Causes of Abnormal PT and/or aPTT
Prolonged Prothrombin Time (PT)
1. Acquired deficiency of FVII
Early liver disease ... antiphospholipid antibodies ... antiphospholipid antibodies ... associated with systemic ... Prolonged #Causes #diagnosis
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
features that are specific ... heart valves • MRI ... often seen • MRI ... - Infectious Diseases ... #table
Sjogren's Syndrome Overview

Epidemiology:
• F > M: 9:1
• 5-6th Decades (can be any age)

Autoimmune exocrinopathy multisystemic disease
hypofunction • Antibodies ... Anti-Ro/SSA ab (specific ... • Antinuclear antibodies ... Central nervous system ... Sjogrens #Syndrome #Rheumatology