7 results
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
Post-strep GN, Lupus ... Nephritis, Cryoglobulinemia ... #differential # ... diagnosis #algorithm ... #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
proteinuria, rapidly progressing ... +MPO) • Cryoglobulinemic ... such as systemic lupus ... #rheumatology # ... classification
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
DDX: • ANCA (Antineutrophil ... (e.g. systemic lupus ... diagnosis #types #classification ... #rheumatology # ... vasculitis
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Pigmented Purpuric Dermatosis ... /HSP • Cryoglobulinemia ... (MIXED) • ANCA ... #Diagnosis #hematology ... #rheumatology #
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... Differential Diagnosis ... + MPO) Cryoglobulinemic ... - interstitial keratitis ... Diagnosis #Rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
Skin Disease Classification ... permanent alopecia Differential ... Non-autoimmune rheumatologic ... vein thrombosis Hematologic ... Erythematosus #Diagnosis #Rheumatology
Paraproteinemias

Entities That Can Feature A Monoclonal Protein/M Component:
• MM
• WM
• MGUS
• MGCS
• MGRS
• Splenic Marginal Zone
• Neutrophilic dermatosis ... (Cryoglobulinemic ... to cold IgG • Lupus ... Paraproteinemias #Hematology ... #Monoclonal #Differential