4 results
IgG4-Related Disease
Clinical history:  Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor
4 phenotypes:
 •
IgG4-Related Disease ... Clinical history ... Retroperitoneum and aorta ... + cells" Treatment ... #phenotypes #workup
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
PR3-ANCA): • Microscopic ... < 30 years - Aorta ... branches • GCA: - Aorta ... aortitis, aortic aneurysm ... Dx: GPA, EGPA, microscopic
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
Rheumatology Workup ... polarized light microscopy ... immunoglobulin G (IgG ... and RF (if clinical ... #diagnosis #testing
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Diagnosis Framework ... < 30 years • Aorta ... Arteritis): • Aorta ... (PR3-ANCA)): Microscopic ... Thrombosis and arterial aneurysms