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

Immune Complex Mediated (granular staining):
pathophysiologic causes ... GPA >>> MPA > eGPA ... • MPO-ANCA (P-ANCA ... ): eGPA, MPA >>> ... GPA Stanford Internal
ANCA-Associated Vasculitis
A group of necrotizing, small-vessel vasculitis without immune complex deposition. Complement levels are normal due
polyangiitis (GPA ... polyangiitis (MPA ... polyangiitis (EGPA ... vasculitis - MPO ... #Rheumatology
Frequency of ANCA Positivity in Different Conditions
ANCA-Associated Vasculitis
 • GPA - PR3-ANCA 75%, MPO-ANCA 20%, 5%
GPA - PR3-ANCA 75% ... • MPA - PR3-ANCA ... • EGPA - PR3- ... - PR3-ANCA 10%, ... #rheumatology
Granulomatosis with Polyangiitis (GPA) and Microscopic Polyangiitis (MPA) - ANCA Vasculitis Management Algorithm - ACR/VF 2021
Polyangiitis (GPA ... ) - ANCA Vasculitis ... #Polyangiitis #GPA ... #Polyangiitis #MPA ... #ANCA #Vasculitis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
capillaritis • EGPA ... > PR3 60% • GPA ... tract, and often causes ... Vasculitis: + MPO-ANCA ... (Dx: GPA, EGPA,
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
): GPA (granulomatous ... polyangiitis), MPA ... subglottic stenosis) in GPA ... Goodpasture's cause ... differential #diagnosis #management
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
- GPA - EGPA ... - MPA • CTD ... Differential #Diagnosis #hematology ... #rheumatology # ... #nonpalpable #dermatology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
ANCA Associated ... polyangiitis - EGPA ... - GPA Cutaneous ... #skin #dermatology ... #rheumatology #
Hemoptysis - Differential Diagnosis Framework
Massive Hemoptysis: >150-300 mL in 24h
Airway disease: 
 • Bronchitis, Bronchiectasis, Malignancy
Kaposi's sarcoma • Rheumatologic ... / Autoimmune: ANCA-Assoc ... vasculitis (GPA ... > EGPA, MPA), Cryoglobulinemia ... Diagnosis #pulmonary #causes
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Polyangiitis (GPA ... polyangiitis (GPA ... GPA causes disease ... polyangiitis • EGPA ... #Polyangiitis #GPA