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Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... < 30 years - Aorta ... and branches • GCA ... : - Aorta and ... retinopathy Lab Tests
Giant cell arteritis (GCA)

Giant cell arteritis (GCA) definition: Most common systemic inflammatory vasculitis in older adults
those coming off aorta ... or sed rate): Value ... = vasculitis vs ... , but normal values ... the “Chewing gum test
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
< 30 years • Aorta ... Arteritis): • Aorta ... develop in pts with GCA ... tract, and often causes ... gut involvement, abdominal