12 results
Petechial/Purpuric Rashes- THE ALGORITHMIC APPROACH 

These rashes can be especially challenging and are
associated with devastating differential
Petechial/Purpuric ... or purpuric rash ... lesions may have a vasculitis ... as autoimmune vasculitis ... #Rash #Algorithm
Petechiae/Purpura - Diagnostic Algorithm. Pathophysiology: 1) Represent the passage of erythrocytes from the intravascular to extravascular
Petechiae/Purpura ... trauma, infection, vasculitis ... #Rash #Petechiae ... #Purpura #Palpable ... #Algorithm #Differential
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
GPA causes disease ... , Palpable purpura ... • Palpable purpura ... Vesicles overlying purpuric ... purpura • Mixed
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Infection - Vasculitis ... Schonlein Purpura ... Rash: - Purpura ... Vasculitis (lupus ... #Causes #dermatology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... PURPURA: Platelet ... Acute Infectious Purpura ... OF PALPABLE PURPURA ... /HSPCryoglobulinemia
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
Small Vessel: Petechiae ... , Palpable purpura ... : - Ig A (HSP) ... - GPA Cutaneous ... #dermatology #rheumatology
Henoch Schonlein Leg Rash - Palpable Purpura
Purpura: Low Platelets or Vasculitis?
45 years old, seen in our
Leg Rash - Palpable ... Purpura Purpura ... Palpable purpura ... Palpable = vasculitis ... #Legs #Rash #clinical
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
of Cutaneous Vasculitis ... correlations • Purpura ... Identification of causes ... (5%): PAN > GPA ... lesions #diagnosis #clinical
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
three primary pathophysiologic ... causes differentiated ... Purpura Anti-GBM ... Glomerulonephritis #Vasculitis ... #differential #
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
: • Purpura, ischemic ... Schonlein Purpura ... erythematous nodules, purpura ... purpura: strong ... purpura.