10 results
Vesiculobullous Skin Rash - Differential Diagnosis Algorithm
Vesicles Fragile/EasiIy Ruptured - Intraepidermal blisters, possibly crusts/erosions
 - Inflammatory
Vesiculobullous Skin Rash ... Bullous systemic lupus ... drug eruption #Vesicular ... Vesiculobullous #SkinRash ... #causes
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
cases, drug-dependent ... Rare (SSA+ for cutaneous ... Positive in 60-80% of cases ... #sle #comparison ... #table #rheumatology
Hydroxychloroquine - Risks and Benefits in Lupus
Benefits:
↓ Disease activity, ↓ Flare, ↓ Damage, ↓ Corticosteroid dose,
Benefits in Lupus ... rare with ~100 cases ... insufficiency - Cuteanous ... Risks #Benefits #Lupus ... #sideeffects #rheumatology
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin Rash ... Differential Diagnosis Algorithm ... soles • Discoid Lupus ... Papulosquamous #SkinRash ... #causes
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial ... Diagnosis Algorithm ... Disruptions in vascular ... Autoimmune Vasculitis (lupus ... for hepatitis B and
Drug Induced Lupus (DIL)
 • Epidemiology: -10% of all lupus cases, drug-dependent, 4:1 to 1:1 F:M
cases, drug-dependent ... NPSLE rare, Malar rash ... Rare (SSA+ for cutaneous ... Discontinuation of causal ... #DIL #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
often causes arthritis ... bullous or vesicular ... mucositis - Rash ... such as systemic lupus ... differential #diagnosis #rheumatology
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• They can cause ... Vascular Sludging ... Henoch-Schönlein purpura) • Cutaneous ... (e.g. systemic lupus ... classification #rheumatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Strong sign of cutaneous ... bullous or vesicular ... , mucositis • Rash ... often causes arthritis ... Differential #Diagnosis #Rheumatology
Antiphospholipid Syndrome (APLS) Testing - Hypercoagulable Workup Algorithm
INDICATIONS FOR TESTING:
 • Vascular thrombosis
Hypercoagulable Workup Algorithm ... FOR TESTING: • Vascular ... chromosomal causes ... excluded Testing: • Lupus ... #diagnosis #hematology