12 results
Skin Conditions Associated with Joint Pain

Rash
	• Human parvovirus B19 infection

Malar rash
	• SLE
	• Human parvovirus B19 infection
	•
Associated with Joint Pain ... 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 ... Polyarteritis Nodosa (PAN ... (RA), Systemic lupus ... erythematosus (SLE ... #Diagnosis #rheumatology
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
Identification of causes ... disease (10%) : SLE ... (5%): PAN > GPA ... #dermpath #dermatology ... pathology #lesions #differential
Top 10 situations when to think about lupus
1) Inflammatory joint pain (especially in the wrists and
Inflammatory joint pain ... and fingers, or pain ... the face (many differential ... 3) Limb oedema leading ... #diagnosis #sle
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential ... tract, and often causes ... such as systemic lupus ... , and SLE) • Urinalysis ... #rheumatology #
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 pain ... • Mesenteric vasculitis
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
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Rash - Differential ... Infection - Vasculitis ... lesions • Severe pain ... (lupus, RA, Sjogren's
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 ... Differential Diagnosis ... diseases, such as SLE ... tract, and often causes ... Diagnosis #Rheumatology