151 results
Approach to Joint Pain - Diagnostic Framework

1) Chronicity
2) Inflammatory vs Non-Inflammatory
3) Number of Joints Involved

1) Chronicity:
), RA, crystal disease ... Inflammatory, crystalline disease ... Chronic = RA, SLE ... #rheumatology # ... approach #workup #differential
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Associated with Joint ... Malar rash • SLE ... #dermatology #joint ... #skin #rashes #differential ... #diagnosis #rheumatology
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
Associated with Joint ... Heberden's nodes (DIP joints ... Bouchard's nodes (PIP joints ... #pain #differential ... #diagnosis #rheumatology
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
Non-specific; common in SLE ... RA Anti-dsDNA - SLE ... - Drug-induced SLE ... biliary cirrhosis (PBC ... diagnosis #table #rheumatology
Antinuclear Antibody Testing - Nuclear and Cytoplasmic Patterns
Nuclear Patterns:
 • Homogeneous pattern: 
   -
pattern: - SLE ... pattern: - SjS, SLE ... Speckled: - SLE ... Cytoplasmic #Patterns #differential ... #diagnosis #rheumatology
Systemic Lupus Erythematosus - Summary
Antinuclear (ANA) - 95% - Initial screening test
Anti-dsDNA - 50%
 • Associated
• Specific for SLE ... Treatment: • ... Erythematosus #SLE ... Summary #diagnosis #rheumatology ... #management
Joint Disorders - Differential Diagnosis Algorithm
Monoarthritis
 • Septic
 • Crystalline
     - Gout
Joint Disorders ... - Differential Diagnosis ... Erythematosus (SLE ... @AmyChung #Joint ... Disorders #msk #Differential
Arthrocentesis - Joint Fluid Analysis

Effusion Characteristics (Color, Clarity, WCC, PMN, Crystals, Bacteria) by Disease Process: 
OA,
Arthrocentesis - Joint ... , Bacteria) by Disease ... Traumatic arthritis SLE ... #Diagnosis #Differential ... Arthrocentesis #Joint
Rheumatoid Arthritis - ACR 2021 Guidelines
 - Low Disease Activity
 - Moderate to High Disease Activity
Guidelines - Low Disease ... Moderate to High Disease ... Tapering DMARDs - Treatment ... ACR2021 #Guidelines #management ... #treatment #rheumatology
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
Associated Rheumatic Diseases ... erythematosus (SLE ... connective tissue disease ... ANA #patterns #rheumatology ... #diagnosis #differential