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Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Differential Diagnosis Algorithm ... Disruptions in vascular ... Infection - Vasculitis ... • Serology for hepatitis ... #Causes #dermatology
Childhood Immunization Schedule: Why we immunize
 • Diphtheria Toxin -> URT inflammation causes pseudomembrane with hardened
with pharyngeal erythema ... with pharyngeal erythema ... skin lesions -> Vesicular ... & pruritic rash ... late findings • Hepatitis
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
New headache, scalp ... and bullous or vesicular ... , mucositis • Rash ... cutaneous vesicles, pustules ... - interstitial keratitis
PALM RASHES 
Common features and patterns:
1.	Color:
o	Red or erythematous: Common in inflammatory or allergic reactions.
o	Purple or purpuric:
or hematologic ... inflammation (vasculitis ... o Scaly or flaky ... Chronic, itchy, scaly ... #erythema