33 results
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
erythematosus (SLE ... ), Sjogren's Syndrome ... #Antinuclear #Antibodies ... ANA #patterns #rheumatology ... #diagnosis #differential
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Using fluorescence microscopy ... likely it will be clinically ... ), Sjogren's Syndrome ... Arthritis, Sjögren Syndrome ... #diagnosis #differential
Myositis Specific Antibodies (MSAs)

Dermatomyositis: MDA5, TIF1y, NXP2, Mi-2, SAE
Anti-Synthetase Syndrome: Jo-1, PL7, PL12, EJ, OJ
Immune Mediated
TIF1y, NXP2, Mi-2, SAE ... Anti-Synthetase Syndrome ... ): HMGCR, SRP Inclusion ... #MSAs #clinical ... #diagnosis #rheumatology
Autoantibodies in Rheumatology
 • Lupus (SLE): ANA (anti-nuclear antibody), dsDNA (double-stranded DNA), Anti-Smith, Anti-Ro (SSA) and
Lupus (SLE): ... others (RNP, aPL antibodies ... glycoprotein I (ß2GP), Lupus ... LAC) • Sjogren Syndrome ... #diagnosis #associations
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
Antinuclear antibodies ... is clinically suspected ... overlap syndromes ... erythematosus #diagnosis ... #rheumatology #
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
- Differential Diagnosis ... Autoimmune • ITP • SLE ... Alloimmune • anti-HLA antibodies ... Non-lmmune: • HELLP Syndrome ... Algorithm #Causes #Hematology
EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus
Clinical Domains:
 • Constitutional domain: Fever
 • Cutaneous domain: Non-scarring
Erythematosus Clinical ... pericarditis • Hematologic ... Highly specific antibodies ... Classification #Criteria #SLE ... Erythematosus #diagnosis
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Malar rash • SLE ... Antiphospholipid-antibody syndrome ... lesions • Discoid lupus ... Sarcoidosis #dermatology ... #differential #diagnosis
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
La) - Sjogren's syndrome ... Microscopic polyangiitis ... Associations #diseases #diagnosis ... #table #rheumatology ... #antibodies
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
) • Systemic lupus ... in drug-induced SLE ... cases • Sjögren syndrome ... Vasculitis: • Microscopic ... #diagnosis #rheumatology