6 results
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Skin, glomeruli ... : - Kidneys: glomerular ... such as systemic lupus ... against MPO • Complement ... #rheumatology #classification
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
staining): • Low Complement ... Post-strep GN, Lupus ... Idiopathic • Normal Complement ... Glomerulonephritis #Vasculitis ... differential #diagnosis #algorithm
Recommended initial testing for patients being evaluated for glomerular disease 

24-hour urine collection - Quantify proteinuria.
Recommended initial ... evaluated for glomerular ... or alternative complement ... ANCA - Screen for ... ANCA-related vasculitis
Recommended initial testing for patients being evaluated for glomerular disease
1) 24-hour urine collection - Quantify proteinuria.
Recommended initial ... or alternative complement ... disorders. 9) ANCA ... - Screen for ANCA-related ... vasculitis. 10
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
anti-Smith Ab, low complements ... Skin Disease Classification ... vasculitis, rheumatoid ... • Mesenteric vasculitis ... RNP antibodies, Complement
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• Low serum C4 complement ... DDX: • ANCA (Antineutrophil ... • Vasculitis ... (e.g. systemic lupus ... diagnosis #types #classification