9 results
Skin Ulcers of the Lower Legs / Feet - Differential Diagnosis Algorithm
Physical:
• Pressure
• Trauma
• Radiation
Vascular:
• Arterial
Skin Ulcers of the ... Lower Legs / Feet ... Melanoma #Lower #Legs ... ulcerative #skinrash ... #causes
Arterial Insufficiency: Chronic arterial insufficiency has resulted in pale, hairless, and somewhat 
shiny appearing lower extremity.
Superficial ulcers ... Goldberg, M.D. - UCSD ... Images #Clinical #Photo ... #Dermatology #SkinRash ... #Leg #Foot #Arterial
Eczematous Skin Rash - Differential Diagnosis Algorithm
Eczematous - Pruritic/Scaly/Erythematous lesions. Usually poorly demarcated
 • Atopic Dermatitis
Eczematous Skin ... Rash - Differential ... Usually on lower legs ... eruption on lower legs ... #causes
Vibrio Vulnificus skin infection
Cirrhosis w/recent consumption of raw oysters w/rapidly evolving rash. 
Vibrio vulnificus part of
marine microbiota & causes ... Hippocrates in 5 BC as foot ... bullae to necrotic ulcers ... #legs #clinical ... #photo
Pustular Skin Rash - Differential Diagnosis Algorithm
Pruritic / Scaly / Erythematous lesions, usually poorly demarcated
Acneiform -
Pustular Skin Rash ... , hot or spicy food ... #Pustular #SkinRash ... #dermatology #Differential ... #causes
Sweet Syndrome

Acute febrile neutrophilic dermatosis (Sweets Syndrome) is a skin condition characterized by fever and inflamed
Occurs on the arms, legs ... ) on the arms, legs ... Causes: - Idiopathic ... : - Biopsy - Microscopic ... #dermatology #oncology
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
Ankles, lower legs ... dorsal aspect of foot-shoe ... extremities, especially legs ... #rash #differential ... #diagnosis #skin
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
arthralgia, arm/leg ... , mucositis • Rash ... (PR3-ANCA)): Microscopic ... tract, and often causes ... purpura (lower legs
Majocchi’s Granuloma due to Trichophyton rubrum 
This is GMS stain and culture of a skin biopsy
and culture of a skin ... from a patient’s leg ... heart Tx: painless leg ... lesions in left leg ... / foot + tinea