8 results
Christmas Tree Rash of Pityriasis rosea
 - small oval scaling patches
 - Christmas tree pattern
 -
Christmas Tree Rash ... - long axis of lesion ... parallel to lines of skin ... palms/soles - Differential ... dermatology #photo #PhysicalExam
Severe Drug Rashes - Comparison - DRESS | SJS/TEN | AGEP | Erythroderma

DRESS 
 - Onset:
DRESS | SJS/TEN | AGEP ... possible target lesions ... >90% of total skin ... Rashes #Comparison #TABLE ... Dermatology #Emergency #Differential
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
- Differential ... reddish-purple lesions ... • Extremes of age ... cryoglobulins • Skin ... #dermatology #physicalexam
Behçet's Syndrome
Systemic disease associated with inflammation of multiple organs, small-vessel vasculitis and large-vessel vasculopathy
Epidemiology:
 • Young
to 40 years of age ... response to local skin ... retinal damage) • Skin ... test (this is a skin ... Behcet disease) Differential
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Purpura, ischemic skin ... - Affects the skin ... Cryoglobulinemic Vasculitis - Skin ... glomerular ischemia - Skin ... Small Vessels: Skin
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Purpura, ischemic skin ... commonly affects the skin ... • Affects the skin ... cmpkx deposits skin ... Vasculitis: • Skin
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
centrifugum • A chronic skin ... gyratum repens • A skin ... induratum • A chronic skin ... classic targetoid lesions ... #differential #
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Autoimmune Myositis - Differential ... ) • Anti-Mi2 (skin ... lesions) • Anti-TIF1 ... Symptoms: • Gottron rash ... MYOSITIS: • M > F • Age