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Erythema Ab Igne on Physical Exam

Erythema ab igne (EAI) is a skin reaction caused by chronic
a skin reaction ... caused by chronic ... #EAI #Erythema # ... #Igne #AbIgne #PhysicalExam ... #dermatology #rash
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... well as inner ear ... disease, drug reactions ... pulses, bruis, or blood ... Large Vessel: Blood
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
disease, drug reactions ... pulses, bruits, or blood ... , mucositis • Rash ... tract, and often causes ... well as inner ear
PALM RASHES 
Common features and patterns:
1.	Color:
o	Red or erythematous: Common in inflammatory or allergic reactions.
o	Purple or purpuric:
such as small blood ... inflammation (vasculitis ... occur in chronic skin ... Seen in systemic causes ... #erythema