9 results
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Antinuclear Antibodies ... Antibody refers to antibodies ... likely it will be clinically ... lupus erythematosus ... ANA #patterns #rheumatology
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 ... , TIF1y, NXP2, Mi ... #MSAs #clinical ... #diagnosis #rheumatology ... #table
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... Suspect: Clinical ... Non-autoimmune rheumatologic ... 1, SCL-70, RNP antibodies ... #Diagnosis #Rheumatology
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
erythematosus ... fever syndromes Clinical ... Fever is the main clinical ... lupus erythematosus ... #Rheumatology
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
Antinuclear antibodies ... -15% If SLE is clinically ... #lupus #erythematosus ... #diagnosis #rheumatology ... #table #ANA
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
heart valves • MRI ... features: Mobile mass ... often seen • MRI ... - Infectious Diseases ... Marantic #diagnosis #table
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
months to years) Systemic ... Lupus Erythematosus ... Evolution: Chronic disease ... sle #comparison #table ... #rheumatology #
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... affected joint • Systemic ... lupus erythematosus ... double-stranded DNA antibodies ... ANA and RF (if clinical
Hemophagocytic Lymphohistiocytosis (HLH)

High mortality without prompt recognition and management. HLH is a critical diagnostic consideration in
of the immune system ... ▪ Autoimmune diseases ... (often termed MAS-HLH ... Clinical Presentation ... inhibitors, anti-IFN-γ antibodies