12 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Nodosum - Mnemonic ... Lofgren's syndrome Ulcerative ... #Differential # ... Diagnosis #Dermatology ... #SkinRash
Erythema Nodosum - Causes and Differential Diagnosis 
Appearance:  erythematous painful lumps usually 1-6 cm in
- Causes and Differential ... thighs RARELY ulcerate ... #Causes #Differential ... Diagnosis #Dermatology ... #SkinRash #Clinical
Head and Neck Skin Ulcers - Differential Diagnosis Algorithm
Neoplastic:
 • Squamous cell carcinoma
 • Basal cell
Head and Neck Skin ... Ulcers - Differential ... #Neck #Ulcers #ulcerative ... #skinrash #dermatology ... Diagnosis #Algorithm #causes
Genital Skin Ulcers - Differential Diagnosis Algorithm
Painful:
 • Herpes simplex
 • Haemophilus ducreyi (chancroid)
 • Behcet's
Genital Skin Ulcers ... - Differential ... genitals #Ulcers #ulcerative ... #skinrash #dermatology ... Diagnosis #Algorithm #causes
Reactive Skin Rash - Differential Diagnosis Algorithm
Reactive erythematous with various morphology
 • Urticaria - Firm /
Reactive Skin Rash ... 24hrs • Erythema Nodosum ... #Reactive #SkinRash ... #dermatology #Differential ... Diagnosis #Algorithm #causes
Pyoderma Gangrenosum: Autoimmune disorder resulting in a vasculitis which causes slowly progressive 
ulceration of the skin.
vasculitis which causes ... progressive ulceration ... of the skin. ... Clinical #Photo #Dermatology ... #SkinRash #Pyoderma
Skin Ulcers of the Lower Legs / Feet - Differential Diagnosis Algorithm
Physical:
• Pressure
• Trauma
• Radiation
Vascular:
• Arterial
Skin Ulcers of the ... Legs / Feet - Differential ... #Feet #Ulcers #ulcerative ... #skinrash #dermatology ... Diagnosis #Algorithm #causes
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Allopecia - Differential ... Capitis - Skin ... trichorrhexis nodosa ... #Differential # ... Diagnosis #dermatology
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
Skin Ulcers by Etiology ... - Differential ... Cryptococcosis #Ulcers #ulcerative ... #skinrash #dermatology ... Diagnosis #Algorithm #causes
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Dermatologic Manifestations ... GPA causes disease ... Bullae/Blisters • Ulceration ... reticularis Differential ... Polyarteritis nodosa