29 results
ANCA-Associated Vasculitis
A group of necrotizing, small-vessel vasculitis without immune complex deposition. Complement levels are normal due
ANCA-Associated ... Vasculitis A group ... PR3 Anti-GBM disease ... MPO #PR3 #Diagnosis ... #Rheumatology
ANA (Antinuclear Antibody) and ANCA (Antineutrophil cytoplasmic antibodies)
 • Systemic lupus erythematosus
   1. Anti-dsDNA
Vasculitis: • ... Renal-limited vasculitis ... Antineutrophil #antibodies #diagnosis ... #rheumatology # ... diseases
Autoantibodies and their Disease Associations
ANA - Non-specific; common in SLE, autoimmune hepatitis
Anti-CCP, Rheumatoid factor - RA
Anti-dsDNA
c-ANCA - Vasculitis ... granulomatosis p-ANCA ... - Vasculitis, e.g ... #diagnosis #table ... #rheumatology #
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential Diagnosis ... Vasculitis: + MPO-ANCA ... Differential Diagnosis ... differential #diagnosis ... #rheumatology #
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
Vasculitis of ... small vessels - ANCA-associated ... #Vessels #Diagnosis ... #Rheumatology # ... Diagnosis
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
involvement: Anti-GBM Disease ... (C-ANCA): GPA > ... Glomerulonephritis #Vasculitis ... #differential #diagnosis ... #algorithm #rheumatology
ANCA-Associated Vasculitis
There are many definitions, but most come down to the presence of granulomas (pathologically or
ANCA-Associated ... Vasculitis There ... StanfordChiefs #ANCA ... #diagnosis #algorithm ... #rheumatology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
- Differential Diagnosis ... • ANCA Associated ... : • Behcet Disease ... #rheumatology # ... differential #diagnosis
Approach to Thrombocytosis - Elevated Platelet Count - Differential Diagnosis Algorithm

Peripheral Smear concerning for malignancy?
→ Refer to hematology ... Inflammatory Conditions: Rheumatologic ... , Vasculitides, ... IBD, Celiac disease ... #Algorithm #hematology
Approach to Von Willebrand disease (VWD)

By Matthew Ho, MD PhD @MatthewHoMD

#VWD #Von #Willebrand #VonWillebrand #disease #hematology
Von Willebrand disease ... Matthew Ho, MD PhD ... VonWillebrand #disease ... #hematology #algorithm ... #diagnosis