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Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Associated with Joint ... Dermatomyositis Erythema chronicum ... rheumaticum • Rheumatic ... fever Gottron's ... lesions • Discoid lupus
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
bacterial), acute rheumatic ... fever • Chronic ... spondyloarthropathies, lupus ... = RA, SLE, psoriatic ... #rheumatology #
Approach to Joint Pain - Arthritis Differential Diagnosis Framework

Inflammatory Versus Noninflammatory Pain
 • Is it inflammatory
fever • Lyme ... fever) • Staphylococcus ... arthritis • SLE ... Symmetrical: • RA • SLE ... Diagnosis #MSK #rheumatology
EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus
Clinical Domains:
 • Constitutional domain: Fever
 • Cutaneous domain: Non-scarring
Erythematosus Clinical ... Constitutional domain: Fever ... in at least 2 joints ... pericarditis • Hematologic ... Classification #Criteria #SLE
Clinical Features of Systemic Lupus (SLE)
General: Fever (50%), Depression, Fatigue (75%), Weight loss (50%)
Eye: Sjögrens (15%)
Skin
Clinical Features ... of Systemic Lupus ... (SLE) General: ... Fever (50%), Depression ... #SLE #systemic
SLICC SLE Diagnostic Criteria - Systemic Lupus Erythematosus
Clinical and Immunologic Criteria

CLINICAL CRITERIA
 - ACUTE CUTANEOUS LUPUS
SLICC SLE Diagnostic ... Erythematosus Clinical ... - CHRONIC CUTANEOUS ... INVOLVING 2 OR MORE JOINTS ... #SLE #Lupus #Erythematosus
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... ) Suspect: Clinical ... weight loss, and fever ... ANCA-associated vasculitis, rheumatoid ... : • Chronic B-cell
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... of the affected joint ... • Systemic lupus ... Screening Tests for Chronic ... ANA and RF (if clinical
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Eosinophilia, asthma, chronic ... vesicular eruption - Joints ... Diagnosis: Systemic rheumatic ... such as systemic lupus ... vasculitis, and SLE
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Diagnosis: • Systemic rheumatic ... diseases, such as SLE ... vesicular eruption • Joints ... Eosinophilia, asthma, chronic ... Palpable purpura, joint