33 results
Systemic Lupus Erythematosus - Summary
Antinuclear (ANA) - 95% - Initial screening test
Anti-dsDNA - 50%
 • Associated
Initial screening test ... block • Sjogren syndrome ... polymyositis overlap syndrome ... #Summary #diagnosis ... #rheumatology #
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
Associated Rheumatic Diseases ... connective tissue disease ... ), Sjogren's Syndrome ... ANA #patterns #rheumatology ... #diagnosis #differential
Connective tissue disease-associated interstitial lung diseases

LIP: lymphoid interstitial pneumonia. NSIP: nonspecific interstitial pneumonia. OP: organizing pneumonia.
PSS: Sjogren syndrome ... rheumatoid arthritis SLE ... : systemic lupus ... LungDisease #CTILD #Diagnosis ... Table #Pulmonary #Rheumatology
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
- Differential Diagnosis ... Algorithm Monoarthritis ... arthritis - (Reiter’s syndrome ... Erythematosus (SLE ... Joint #Disorders #msk
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
), Sjogren's Syndrome ... : Lupus (SLE), Systemic ... Arthritis, Sjögren Syndrome ... ANA #patterns #rheumatology ... #diagnosis #differential
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Lupus (SLE) General ... Demyelinating syndromes ... pain (20%) Renal disease ... signs #symptoms #diagnosis ... #rheumatology
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
system • Entrapment ... Genitourinary system ... Cardiovascular system ... #differential #diagnosis ... #rheumatology
Nail Disorders secondary to Systemic Diseases
Nail Fold Abnormality
 • SLE
 • Scleroderma
 • Dermatomyositis
Koilonychia - Spoon-shaped
Abnormality • SLE ... • Nephrotic syndrome ... #Secondary #dermatology ... #Differential #Diagnosis ... #Algorithm #causes
Monoclonal Gammopathy of Clinical Significance (MGUS) - Differential Diagnosis

Neurologic-Centered:
 (+) Systemic Features: POEMS, AL amyloid, Cryoglobulinemia
- Differential Diagnosis ... capillary leak syndrome ... • Schnitzler syndrome ... Ig deposition disease ... #hematology #oncology
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
antibodies and Systemic ... clinically suspected, tests ... overlap syndromes ... erythematosus #diagnosis ... #rheumatology #