35 results
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
Anti-dsDNA (in 70% of cases ... in drug-induced SLE ... seen in 30—70% of cases ... 80-90%) > MPO - ANCA ... antibodies #diagnosis #rheumatology
Granulomatosis with Polyangiitis (GPA) and Microscopic Polyangiitis (MPA) - ANCA Vasculitis Management Algorithm - ACR/VF 2021
Polyangiitis (MPA) - ANCA ... Vasculitis Management ... Polyangiitis #MPA #ANCA ... #Treatment #ACR2021 ... Guidelines #algorithm #rheumatology
Eosinophilic Granulomatosis with Polyangiitis (EGPA) - ANCA Vasculitis Management Algorithm - ACR/VF 2021 Guidelines
 • Active
Polyangiitis (EGPA) - ANCA ... Vasculitis Management ... #Polyangiitis #ANCA ... #Treatment #ACR2021 ... Guidelines #algorithm #rheumatology
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
Diagnosis and Management ... Workup: - ANA ... Positive in 60-80% of cases ... 50-60% - pANCA ... #Summary #rheumatology
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
10% of all lupus cases ... Discontinuation of causal ... Usual therapeutic management ... comparison #table #rheumatology ... #diagnosis #management
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Splenomegaly - CTD (SLE ... Cryoglobulinemia (MIXED) • ANCA ... Associated - SLE ... Differential #Diagnosis #hematology ... #rheumatology #
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
function test, ANA ... (e.g., SLE), anti-phospholipid ... patients if the cause ... or if a primary hematologic ... #Workup #hematology
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
Nodosa (PAN), ANCA ... erythematosus (SLE ... (SPA) • Other Causes ... Mycobacterial Causes ... Differential #Diagnosis #rheumatology
Systemic Lupus Erythematosus - Summary
Antinuclear (ANA) - 95% - Initial screening test
Anti-dsDNA - 50%
 • Associated
Antinuclear (ANA ... • Specific for SLE ... Erythematosus #SLE ... Summary #diagnosis #rheumatology ... #management
Hydroxychloroquine Serum Measurement in SLE
 • Terminal elimination half-life = 40 days ([HCQI reflects long-term intake)
Measurement in SLE ... • Special cases ... #Measurement #SLE ... #rheumatology # ... levels #lupus #management