9 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Associated with Joint ... Hypersensitivity vasculitis ... lesions • Discoid lupus ... #joint #pain #skin ... #rashes #differential
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
Aortitis - Differential ... ANCA associated vasculitis ... (RA), Systemic lupus ... erythematosus (SLE ... #Diagnosis #rheumatology
Approach to Joint Pain - Diagnostic Framework

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

1) Chronicity:
spondyloarthropathies, lupus ... Like in this case ... Chronic = RA, SLE ... #rheumatology # ... approach #workup #differential
Top 10 situations when to think about lupus
1) Inflammatory joint pain (especially in the wrists and
) Inflammatory joint ... the face (many differential ... 3) Limb oedema leading ... children (pediatric SLE ... #diagnosis #sle
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... permanent alopecia Differential ... ANCA-associated vasculitis ... Arthritis: • Joint ... arthropathy • 90% joints
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... vesicular eruption - Joints ... such as systemic lupus ... , and SLE) • Urinalysis ... #rheumatology #
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
immune system, leading ... • They can cause ... Cryoglobulins Cause ... (e.g. systemic lupus ... erythematosus (SLE
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
of Hemostasis - Differential ... inhibitor and lupus ... discern these causes ... integrity == • Vasculitis ... #Diagnosis #Hematology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... diseases, such as SLE ... vesicular eruption • Joints ... tract, and often causes ... Palpable purpura, joint