82 results
Vasculitis Involving the Skin - Differential Diagnosis Framework

Primary: 50% Cutaneous Vasculitis: Leukocytoclastic Vasculitis
Secondary: CTD: SLE, RA
- Differential Diagnosis ... bullae, Ulceration, Urticaria ... - Anti-C1q (Urticarial ... #skin #dermatology ... #differential #diagnosis
Diagnosis and Management of Hypocomplementemic Urticarial Vasculitis (HUV)

Diagnosis of HUV
1) Chronic urticaria 
2) Leukocytoclastic vasculitis 
3)
Diagnosis and Management ... Vasculitis (HUV ... ) Diagnosis of ... HUV 1) Chronic urticaria ... #Vasculitis #HUV
Pathophysiology of Hypocomplementemic Urticarial Vasculitis

C1q/anti-C1q antibiody ->
Immune Complex Formation - Complement Pathway Activation (C3a and C5a)
Pathophysiology ... Hypocomplementemic Urticarial ... Vasculitis C1q ... Hypocomplementemic #Urticarial ... #Pathophysiology
Petechiae/Purpura - Diagnostic Algorithm. Pathophysiology: 1) Represent the passage of erythrocytes from the intravascular to extravascular
Petechiae/Purpura - Diagnostic ... Pathophysiology: ... trauma, infection, vasculitis ... pulmonary #Diagnosis ... #Dermatology #Rash
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential Diagnosis ... Hypocomplementemic Urticarial ... - Urticaria and ... Differential Diagnosis ... differential #diagnosis
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Dermatologic Manifestations ... gangrenosum) • Urticaria ... Differential Diagnosis ... #Dermatologic ... #rash #diagnosis
Classification of Vasculitis 
Vasculitis of large vessels 
 - Arteritis temporalis (giant-cell arteritis) 
 - Takayasu
Classification of Vasculitis ... Vasculitis of ... hypocomplementary urticarial ... #Vessels #Diagnosis ... #Rheumatology #Diagnosis
Maculopapular - Diagnostic Algorithm
Pathophysiology:
- Catch-all term with a wide range of potential pathophysiologic mechanisms and causative
Maculopapular - Diagnostic ... Algorithm Pathophysiology ... red-flags to exclude dermatologic ... Immunocompromised #Diagnosis ... #Dermatology #Rash
Causes of Urticaria

Immunoglobulin E (IgE) mediated

 - Aeroallergens

 - Contact allergen

 - Food allergens

 - Insect
Causes of Urticaria ... Lymphoma - Vasculitis ... - Water #Diagnosis ... #Differential #Urticaria
Dermatological semiology of Cutaneous Vasculitis 

Clinicopathologic correlations
 • Purpura, papules, pustules, necrosis: involvement of small vessels
semiology of Cutaneous Vasculitis ... • Drug-induced vasculitis ... • Necrotizing vasculitis ... #dermpath #dermatology ... signs #lesions #diagnosis