15 results
Vesiculobullous Skin Rash - Differential Diagnosis Algorithm
Vesicles Fragile/EasiIy Ruptured - Intraepidermal blisters, possibly crusts/erosions
 - Inflammatory
Diagnosis Algorithm ... • Contact dermatitis ... Bullous systemic lupus ... Vesiculobullous #SkinRash ... #causes
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
Diffuse and Focal) Differential ... Diagnosis Algorithm ... • Discoid lupus ... Diffuse #Focal #HairLoss ... #causes
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Allopecia - Differential ... Diagnosis Framework ... Folliculitis decalvans, Tinea ... Disease: Discoid lupus ... #Hairloss
Focal / Localized Hair Loss (Alopecia) - Differential Diagnosis Algorithm

Scarring - Irreversible-biopsy required
 - Infectious
Diagnosis Algorithm ... Infectious • Tinea ... • Discoid lupus ... Secondary syphilis #HairLoss ... #causes
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Diagnosis Algorithm ... Herald's atch • Tinea ... soles • Discoid Lupus ... Papulosquamous #SkinRash ... #causes
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
Aortitis - Differential ... Diagnosis Framework ... (RA), Systemic lupus ... Aortitis: • Most common ... #Diagnosis #rheumatology
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
Cytopenia - Less common ... Rarely positive (common ... #sle #comparison ... #table #rheumatology ... #diagnosis #management
Top 10 situations when to think about lupus
1) Inflammatory joint pain (especially in the wrists and
the face (many differential ... diagnoses, including ... the very common ... #diagnosis #sle ... erythematosus #rheumatology
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
: elevated CK (uncommon ... 5-15% of lupus ... Myopathies #myopathy #differential ... #diagnosis #comparison ... #rheumatology
Features That Differentiate Acute Pericarditis from Myocardial Ischemia or Infarction and Pulmonary Embolism

In contrast to the
associated with rheumatologic ... from other common ... life-threatening causes ... #Presentation #comparison ... #Table #Diagnosis