15 results
Causes of Erythema Nodosum - Mnemonic

NO cause found in 60% of cases
Drugs (antibiotics e.g., sulfonamides, amoxicillin)
Oral
Causes of Erythema ... amoxicillin) Oral ... Lofgren's syndrome Ulcerative ... #Differential #Diagnosis ... #Dermatology #SkinRash
Head and Neck Skin Ulcers - Differential Diagnosis Algorithm
Neoplastic:
 • Squamous cell carcinoma
 • Basal cell
- Differential Diagnosis ... #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 ... 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 ... #Feet #Ulcers #ulcerative ... #skinrash #dermatology ... #Differential #Diagnosis ... #Algorithm #causes
Erythema Nodosum - Causes and Differential Diagnosis 
Appearance:  erythematous painful lumps usually 1-6 cm in
Erythema Nodosum - Causes ... and Differential Diagnosis ... thighs RARELY ulcerate ... #Differential Diagnosis ... #Dermatology #SkinRash
Skin Ulcers by Etiology - Differential Diagnosis Algorithm
Physical:
 • Trauma
 • Pressure
 • Radiation
Vascular:
 • Arterial
- Differential Diagnosis ... • Bleomycin Hematologic ... Cryptococcosis #Ulcers #ulcerative ... #skinrash #dermatology ... #Algorithm #causes
Tinea Versicolor (Pityriasis versicolor) 
NOT a dermatophyte infection 
Caused by saprophytic, lipid-dependent yeasts 
Clinical 
 •
dermatophyte infection Caused ... erythematous Diagnosis ... antifungals • Oral ... Tinea #Versicolor #Dermatology ... #SkinRash #Diagnosis
Oral Skin Ulcers - Differential Diagnosis Algorithm
Single Ulcer:
 • Traumatic ulcer
 • Angular ulcer
 • Aphthous
Oral Skin Ulcers ... Acute necrotizing ulcerative ... #mouth #SkinRash ... #dermatology #Differential ... #causes
Basophilia - Differential Diagnosis Framework

Basophils < 1% of the total white blood cell count
Basophils function similarly
- Differential Diagnosis ... myeloid leukemia (CML ... Reactions: • Ulcerative ... #Differential #Diagnosis ... #causes #hematology
Causes of Anemia with elevated Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Normal Blood Smear
 •
Causes of Anemia ... Corpuscular Volume (MCV ... - Differential Diagnosis ... Smear • Drugs Oval ... #Hematology