7 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 ... #Feet #Ulcers # ... #Algorithm #causes
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 ... veins, venous ulcers
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 ... #dermatology #legs ... #clinical #photo
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
Ankles, lower legs ... dorsal aspect of foot-shoe ... Dermatophytosis - Feet ... extremities, especially legs ... #dermatology #rash
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
- Differential Diagnosis ... arthralgia, arm/leg ... , mucositis • Rash ... 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
The Stages of Syphilis 

Primary Syphilis 
- The chancre lesion is the hallmark of primary syphilis.
Syphilis - Rash ... - Less common ... are ulcerating granuIomas ... on skin, bone, ... Latent #Tertiary #Diagnosis