31 results
Seronegative Inflammatory Arthritis - Differential Diagnosis
 • Seronegative Rheumatoid Arthritis 
 • Infectious Arthritis: Viral, Bacterial,
- Differential ... Systemic Rheumatic Disease ... : Systemic Lupus ... #arthritides #Differential ... #Diagnosis #rheumatology
ANA Patterns and Associated Rheumatic Diseases:
 • Homogeneous: Systemic lupus erythematosus (SLE), Mixed connective tissue disease
Associated Rheumatic Diseases ... Juvenile Idiopathic Arthritis ... #Antinuclear #Antibodies ... ANA #patterns #rheumatology ... #diagnosis #differential
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Associated with Joint ... lesions • Discoid lupus ... #joint #pain #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
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
Antinuclear Antibodies ... Antibody refers to antibodies ... #Antinuclear #Antibodies ... ANA #patterns #rheumatology ... #diagnosis #differential
Connective tissue disease-associated interstitial lung diseases

LIP: lymphoid interstitial pneumonia. NSIP: nonspecific interstitial pneumonia. OP: organizing pneumonia.
RA: rheumatoid arthritis ... SLE : systemic lupus ... CTILD #Diagnosis #Differential ... #Comparison #Table ... #Pulmonary #Rheumatology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
Complement: Post-strep GN ... , Lupus Nephritis ... Purpura Anti-GBM antibodies ... involvement: Anti-GBM Disease ... diagnosis #algorithm #rheumatology
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
), RA, crystal disease ... spondyloarthropathies, lupus ... Inflammatory, crystalline disease ... #rheumatology # ... approach #workup #differential
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
with temporal arteritis ... uncommon 5-15% of lupus ... Myopathies #myopathy #differential ... #diagnosis #comparison ... #rheumatology
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
Aortitis - Differential ... GCA), Takayasu's arteritis ... (RA), Systemic lupus ... swinndong #Aortitis #Differential ... #Diagnosis #rheumatology