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

Immune Complex Mediated (granular staining):
Post-strep GN, Lupus ... (C-ANCA): GPA > ... Glomerulonephritis #Vasculitis #differential ... #diagnosis #algorithm ... #rheumatology
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
Drug Induced Lupus ... to 1:1 F:M • Clinical ... 40, F:M 9:1 • Clinical ... #sle #comparison ... #table #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Vasculitides - Differential ... inflammation Others: • Lupus ... and branches • GCA ... such as systemic lupus ... vasculitis, and SLE
Antinuclear Antibodies (ANA)
ANA or Anti-NucIear Antibody refers to antibodies against antigens in the nucleus → like
likely it will be clinically ... erythematosus (SLE ... (SLE), Systemic ... #patterns #rheumatology ... #diagnosis #differential
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
Aortitis - Differential ... Cell Arteritis (GCA ... Nodosa (PAN), ANCA ... (RA), Systemic lupus ... erythematosus (SLE
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
SLE (Systemic Lupus ... ) Suspect: Clinical ... macular, patchy eruption ... permanent alopecia Differential ... Malignancy (e.g. hematologic
ANCA-Associated Vasculitis
There are many definitions, but most come down to the presence of granulomas (pathologically or
pathologically or clinically ... polyangiitis (GPA ... #Vasculitis #differential ... #diagnosis #algorithm ... #rheumatology
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Vasculitis - Differential ... diseases, such as SLE ... Elevated ESR and CRP GCA ... develop in pts with GCA ... #Diagnosis #Rheumatology
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
Syndrome: • Clinical ... diseases: - 10% SLE ... DDX: • ANCA (Antineutrophil ... (e.g. systemic lupus ... erythematosus (SLE