32 results
Pyoderma Gangrenosum: Autoimmune disorder resulting in a vasculitis which causes slowly progressive 
ulceration of the skin.
resulting in a vasculitis ... which causes slowly ... ulceration of the skin ... Goldberg, M.D. - UCSD ... #Dermatology #SkinRash
Vascular Skin Lesions - Differential Diagnosis Algorithm
 - Petechiae < 0.2 cm diameter
 - Purpura 0.2
Vascular Skin Lesions ... - Differential Diagnosis ... discolorations of skin ... #SkinRash #dermatology ... #Algorithm #causes
Giant Cell (Temporal) Arteritis: Pathogenesis and investigations
Risk Factors:
 - Unclear environmental triggers (may be viral, not
yrs old; F>M Signs ... skin lesions ... Temporal #Arteritis #Pathophysiology ... #Diagnosis #Signs ... #Symptoms #Vasculitis
Skin Ulcers of the Lower Legs / Feet - Differential Diagnosis Algorithm
Physical:
• Pressure
• Trauma
• Radiation
Vascular:
• Arterial
Skin Ulcers of the ... - Differential Diagnosis ... insufficiency • Vasculitis ... Ulcers #ulcerative #skinrash ... #Algorithm #causes
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
- Differential Diagnosis ... tract, and often causes ... Differential Diagnosis ... purpura: strong sign ... differential #diagnosis
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
Skin Ulcers by Etiology ... - Differential Diagnosis ... insufficiency • Vasculitis ... Ulcers #ulcerative #skinrash ... #Algorithm #causes
Rheumatoid arthritis (RA): Extra-articular manifestations
Skin: 
 • Inflammation of skin (esp. over areas of stress) forms
blood vessels (vasculitis ... inflammation tends to cause ... RheumatoidArthritis #RA #pathophysiology ... #signs #symptoms ... #diagnosis #ExtraArticular
Systemic Lupus Erythematosus (SLE): Musculoskeletal Manifestations

 • Immune Complex Deposition
    - Arthralgia, Arthritis
Myopathy (Also caused ... Erythematosus #SLE #MSK ... Complications #pathophysiology ... #signs #symptoms ... #diagnosis
Lupus (SLE): Mucocutaneous Manifestations

 • Langerhan cells and keratinocytes release cytokines -> localized inflammatory response ->
hair follicles -> causes ... inflammation on skin ... Livedo Reticularis, Vasculitis ... Manifestations #pathophysiology ... #diagnosis #signs
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Diagnosis Framework ... Differential Diagnosis ... purpura: Strong sign ... tract, and often causes ... #Differential #Diagnosis