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

Immune Complex Mediated (granular staining):
Lupus Nephritis, Cryoglobulinemia ... ANCA (C-ANCA): GPA ... , MPA >>> GPA Stanford ... Glomerulonephritis #Vasculitis ... diagnosis #algorithm #rheumatology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Urticarial/LCV) - Cryoglobulinemic ... polyangiitis - EGPA ... - GPA Cutaneous ... : • Behcet Disease ... #dermatology #rheumatology
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
Cryoglobulinemia ... - GPA, EGPA, microscopic ... diagnosis #types #classification ... #rheumatology # ... vasculitis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
> PR3 60% • GPA ... ANCA +MPO) • Cryoglobulinemic ... : • Behçet Syndrome ... differential #diagnosis #rheumatology ... #classification
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Polyangiitis (GPA ... polyangiitis (GPA ... purpura (16%) • Painful ... purpura • Mixed cryoglobulinemia ... rash #diagnosis #rheumatology
Behcet's Syndrome - Diagnosis
Diagnostic Criteria for Behget's Syndrome (International Study Group for Behget's Disease):
 • Recurrent,
Behcet's Syndrome ... Uveitis or retinal vasculitis ... Clinical Features: • Painful ... uveitis, retinal vasculitis ... Diagnosis #criteria #rheumatology
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
Classification of ... Vasculitis Vasculitis ... syndrome - Behcet ... dermatomyositis #Size #Classification ... #Diagnosis #Rheumatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
/HSP • Cryoglobulinemia ... - GPA - EGPA ... - MPA • CTD ... Differential #Diagnosis #hematology ... #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
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
Non-Infectious Aortitis: • Vasculitides ... Cell Arteritis (GCA ... polychondritis, Behcet's ... ANCA associated vasculitis ... Differential #Diagnosis #rheumatology