11 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
- Mnemonic NO ... Lofgren's syndrome Ulcerative ... #Differential # ... Diagnosis #Dermatology ... #SkinRash
Head and Neck Skin Ulcers - Differential Diagnosis Algorithm
Neoplastic:
 • Squamous cell carcinoma
 • Basal cell
Diagnosis Algorithm ... Metabolic: • Pyoderma ... #Neck #Ulcers #ulcerative ... #skinrash #dermatology ... Diagnosis #Algorithm
Skin Ulcers of the Lower Legs / Feet - Differential Diagnosis Algorithm
Physical:
• Pressure
• Trauma
• Radiation
Vascular:
• Arterial
Diagnosis Algorithm ... Metabolic: • Pyoderma ... #Feet #Ulcers #ulcerative ... #skinrash #dermatology ... Diagnosis #Algorithm
Erythema Nodosum - Causes and Differential Diagnosis 
Appearance:  erythematous painful lumps usually 1-6 cm in
Erythema Nodosum ... Diagnosis Appearance ... thighs RARELY ulcerate ... Diagnosis #Dermatology ... #SkinRash #Clinical
Ulcerative Blastomycosis Skin Lesion
57 asymptomatic M from Indiana nonpruritic, painless, progressive skin lesion lower back x
Diagnosis? ... squamous cell ca, pyoderma ... Blastomycosis #SkinRash ... #dermatology #clinical ... #photo
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
Diagnosis Algorithm ... Metabolic: • Pyoderma ... Cryptococcosis #Ulcers #ulcerative ... #skinrash #dermatology ... Diagnosis #Algorithm
Genital Skin Ulcers - Differential Diagnosis Algorithm
Painful:
 • Herpes simplex
 • Haemophilus ducreyi (chancroid)
 • Behcet's
Skin Ulcers - Differential ... Diagnosis Algorithm ... genitals #Ulcers #ulcerative ... #skinrash #dermatology ... Diagnosis #Algorithm
Reactive Skin Rash - Differential Diagnosis Algorithm
Reactive erythematous with various morphology
 • Urticaria - Firm /
Diagnosis Algorithm ... 24hrs • Erythema Nodosum ... #Reactive #SkinRash ... #dermatology #Differential ... #Diagnosis #Algorithm
Pyoderma Gangrenosum in Ulcerative Colitis- ...left chest (Panel A) and leg (Panel B). The physical examination
Pyoderma Gangrenosum ... A diagnosis of pyoderma ... second most common dermatologic ... after erythema nodosum ... #clinical #photo
Dermatologic Manifestations of Granulomatosis with Polyangiitis (GPA)

Skin involvement in granulomatosis with polyangiitis (GPA) is common and
Bullae/Blisters • Ulceration ... which may resemble pyoderma ... reticularis Differential ... Polyarteritis nodosa ... #rash #diagnosis