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Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Vasculitis Involving ... 50% Cutaneous Vasculitis ... Leukocytoclastic Vasculitis ... Petechiae, Palpable purpura ... arteritis • Takayasu's
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
Classification of Vasculitis ... Vasculitis of ... arteritis) - Takayasu ... ANCA-associated vasculitis ... disease - purpura-arthralgia-nephritis
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
: • Purpura, ischemic ... Henoch Schonlein Purpura ... erythematous nodules, purpura ... disease): • Takayasu ... causing palpable purpura
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
: • Purpura, ischemic ... scleritis • Palpable purpura ... GRANULOMATOUS DISEASE): Takayasu ... Henoch Schonlein Purpura ... ) • Palpable purpura
Causes of Renal Infarction - Differential Diagnosis
Thrombosis: Spontaneous
 • Atherosclerotic disease of aorta and renal artery
Ehlers-Danlos syndrome • Vasculitis ... Polyarteritis nodosa, Takayasu's ... Other necrotizing vasculitides ... thrombocytopenic purpura
Petechial/Purpuric Rashes- THE ALGORITHMIC APPROACH 

These rashes can be especially challenging and are
associated with devastating differential
Petechial/Purpuric ... occurs in vasculitic ... Nonpalpable purpura ... lesions may have a vasculitis ... as autoimmune vasculitis
Algorithm for Diagnosis of the Petechial / Purpuric Rash

Febrile/Toxic, Palpable: 
 - Meningococcaemia, Disseminated Gonococcal Infection,
the Petechial / Purpuric ... Henoch-SchönIein Purpura ... Non-palpable - Purpura ... - Autoimmune Vasculitis ... #Petechiae #Purpura
Causes of Purpura - Differential Diagnosis
Disruption in Vascular Integrity: 
 • Trauma, Infection, Vasculitis, Drug induced
Causes of Purpura ... Trauma, Infection, Vasculitis ... , Drug induced vasculitis ... C), Pigmented purpuric ... BrighamChiefs #Purpura
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
: Vasculitis: ... Leukocytoclastic vasculitis ... • Ig A vasculitis ... associated small vessel vasculitis ... HCV, HBV Not Vasculitis
Purpuric Skin Lesions - Petechia/Purpura and Ecchymosis 

#Purpuric #Purpura #Petechia #Ecchymosis #Comparison #Dermatology #Skin #Diagnosis #Clinical
Purpuric Skin Lesions ... - Petechia/Purpura ... Ecchymosis #Purpuric ... #Purpura #Petechia