18 results
Role of Uric Acid in the Inflammation of Gout

Allopurinol, Febuxostat - Xanthine oxidase
Colchicine - Release of
Inflammation of Gout ... inflammation #gout ... #uricacid #pathophysiology ... #pharmacology # ... rheumatology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Vasculitis Involving ... Secondary: CTD: SLE ... , infections, drug ... #skin #dermatology ... #rheumatology #
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Secondary Causes: - Drug ... Splenomegaly - CTD (SLE ... Associated - SLE ... Differential #Diagnosis #hematology ... #rheumatology #
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
methotrexate) • Drugs ... Autoimmune • ITP • SLE ... anti-HLA antibodies Drugs ... HUS • DIC • Vasculitis ... Algorithm #Causes #Hematology
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
Anti-histone - Drug-induced ... SLE Anti-Jo-1 - ... disease c-ANCA - Vasculitis ... granulomatosis p-ANCA - Vasculitis ... diagnosis #table #rheumatology
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
Drug Associated ... Vessels: Supply gut ... polyarteritis, drug-induced ... , and SLE) • Urinalysis ... differential #diagnosis #rheumatology
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
Anti-histone (in drug-induced ... SLE) • Systemic ... ANCA-Associated Vasculitis ... Renal-limited vasculitis ... antibodies #diagnosis #rheumatology
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
Drug Induced Lupus ... vs SLE Drug Induced ... all lupus cases, drug-dependent ... #comparison #table ... #rheumatology #
Extra-articular and Other Conditions Associated with Joint Pain

Eyes
  • Iritis or uveitis - Spondyloarthropathies, Sarcoidosis,
retinal exudates) - SLE ... Nodules • RA • Gout ... Tophi - Gout ... Lyme disease, Vasculitis ... differential #diagnosis #rheumatology
SLE (Systemic Lupus Erythematosus)

Suspect:
Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
ANCA-associated vasculitis ... Non-autoimmune rheumatologic ... extremities Drug ... • Antihistone: Drug ... Erythematosus #Diagnosis #Rheumatology