15 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+ 50%, frequently ... vasculitis - MPO ... #Rheumatology
A System for Vasculitides 

#Diagnosis #IM #Rheum #Vasculitis #Small #Medium #Large #Vessel #Size #Classification #ANCA #Differential
A System for Vasculitides ... Diagnosis #IM #Rheum #Vasculitis ... #Small #Medium ... #Vessel #Size #Classification ... #ANCA #Differential
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
myeloperoxidase (MPO-ANCA ... 100 % Commonly MPO-ANCA ... Vasculitis: + MPO-ANCA ... #rheumatology # ... classification
Frequency of ANCA Positivity in Different Conditions
ANCA-Associated Vasculitis
 • GPA - PR3-ANCA 75%, MPO-ANCA 20%, 5%
Frequency of ANCA ... , MPO-ANCA 20%, ... 5%, MPO-ANCA 45% ... MPO-ANCA 90%, Often ... PR3 #diagnosis #rheumatology
Break down Vasculitis based on vessel size
#Diagnosis #Rheumatology #Differential #Vasculitis #VesselSize #Small #Medium #Large #Classification
Break down Vasculitis ... size #Diagnosis #Rheumatology ... #Differential # ... #Small #Medium ... #Large #Classification
Vasculitis - Break down based on vessel size 
Distribution of vessel involvement by large vessel vasculitis,
Medium vessel vasculitis ... basement membrane; ANCA ... #Diagnosis #Rheumatology ... #Differential # ... #Large #Classification
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
(C-ANCA): GPA > ... MPO-ANCA (P-ANCA ... Glomerulonephritis #Vasculitis ... #differential # ... diagnosis #algorithm #rheumatology
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
the Skin - Differential ... Urticaria • Medium ... • ANCA Associated ... #dermatology #rheumatology ... #differential #
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
Classification of ... of medium vessels ... small vessels - ANCA-associated ... dermatomyositis #Size #Classification ... #Diagnosis #Rheumatology
Diagnosis and management of Polyarteritis Nodosa (PAN)

Chapel Hill 2012 definition: 
Necrotizing vasculitis ofmedium or small arteries
Necrotizing vasculitis ... ofmedium or small ... associated with ANCA ... PolyarteritisNodosa #Rheumatology ... #Differential