20 results
Pathophysiology of Hypocomplementemic Urticarial Vasculitis

C1q/anti-C1q antibiody ->
Immune Complex Formation - Complement Pathway Activation (C3a and C5a)
Pathophysiology of Hypocomplementemic ... Urticarial Vasculitis ... Complex Formation - Complement ... Formation -> Vasculitis ... TerrierBen #Hypocomplementemic
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 ... #Differential #Algorithm
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
abnormalities SMALL ... Urticaria and hypocomplementemia ... pain, infarct • Small ... against MPO • Complement ... #rheumatology #classification
Vasculitis - Break down based on vessel size 
Distribution of vessel involvement by large vessel vasculitis,
, and small vessel ... Small vessel vasculitis ... immune complex small ... #VesselSize #Small ... Medium #Large #Classification
Break down Vasculitis based on vessel size
#Diagnosis #Rheumatology #Differential #Vasculitis #VesselSize #Small #Medium #Large #Classification
Break down Vasculitis ... #Differential #Vasculitis ... #VesselSize #Small ... Medium #Large #Classification
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
Classification of ... Vasculitis Vasculitis ... of small vessels ... dermatomyositis #Size #Classification ... #Vasculitis #Vessels
ANCA-Associated Vasculitis
A group of necrotizing, small-vessel vasculitis without immune complex deposition. Complement levels are normal due
ANCA-Associated Vasculitis ... of necrotizing, small-vessel ... vasculitis without ... Complement levels ... ANCA #Associated #Vasculitis
Petechiae/Purpura - Diagnostic Algorithm. Pathophysiology: 1) Represent the passage of erythrocytes from the intravascular to extravascular
Purpura - Diagnostic Algorithm ... trauma, infection, vasculitis ... process such as vasculiitis ... identified, other small ... Purpura #Palpable #Algorithm
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
staining): • Low Complement ... Idiopathic • Normal Complement ... Glomerulonephritis #Vasculitis ... differential #diagnosis #algorithm
Cryoglobulinemia Summary

Cryoglobulins:
 • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
• Low serum C4 complement ... • Cutaneous small-vessel ... vasculitis • ... • Vasculitis ... diagnosis #types #classification