11 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Lofgren's syndrome Ulcerative ... TB Viral: HSV ... , EBV, HIV, HepB ... Differential #Diagnosis #Dermatology ... #SkinRash
Head and Neck Skin Ulcers - Differential Diagnosis Algorithm
Neoplastic:
 • Squamous cell carcinoma
 • Basal cell
Differential Diagnosis Algorithm ... #Neck #Ulcers #ulcerative ... #skinrash #dermatology ... Differential #Diagnosis #Algorithm ... #causes
Genital Skin Ulcers - Differential Diagnosis Algorithm
Painful:
 • Herpes simplex
 • Haemophilus ducreyi (chancroid)
 • Behcet's
Differential Diagnosis Algorithm ... genitals #Ulcers #ulcerative ... #skinrash #dermatology ... Differential #Diagnosis #Algorithm ... #causes
Skin Ulcers of the Lower Legs / Feet - Differential Diagnosis Algorithm
Physical:
• Pressure
• Trauma
• Radiation
Vascular:
• Arterial
Differential Diagnosis Algorithm ... #Feet #Ulcers #ulcerative ... #skinrash #dermatology ... Differential #Diagnosis #Algorithm ... #causes
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
Differential Diagnosis Algorithm ... • Bleomycin Hematologic ... Cryptococcosis #Ulcers #ulcerative ... #skinrash #dermatology ... #causes
Erythema Nodosum - Causes and Differential Diagnosis 
Appearance:  erythematous painful lumps usually 1-6 cm in
Erythema Nodosum - Causes ... thighs RARELY ulcerate ... Erythema #Nodosum #Causes ... Differential Diagnosis #Dermatology ... #SkinRash #Clinical
Kaposis Sarcoma: Darkly pigmented macules caused by this malignancy. Seen most commonly in
patients with HIV infection.

Charlie
pigmented macules caused ... patients with HIV ... Images #Clinical ... #Photo #Dermatology ... #SkinRash #Kaposis
Pyoderma Gangrenosum: Autoimmune disorder resulting in a vasculitis which causes slowly progressive 
ulceration of the skin.
vasculitis which causes ... progressive ulceration ... Images #Clinical ... #Photo #Dermatology ... #SkinRash #Pyoderma
Oral Skin Ulcers - Differential Diagnosis Algorithm
Single Ulcer:
 • Traumatic ulcer
 • Angular ulcer
 • Aphthous
Differential Diagnosis Algorithm ... Acute necrotizing ulcerative ... #Oral #mouth #SkinRash ... #dermatology #Differential ... #causes
Rickettsialpox Eschar

40 homeless male from NY admitted with fever, chills, headache, myalgias. Diagnosis?
Rickettsialpox R akari classic
smallpox, chickenpox, vzv ... , hsv, Queensland ... #rakari #clinical ... #photo #skinrash ... #dermatology