Causes of Erythema Nodosum - Mnemonic NO cause found in 60% of cases Drugs (antibiotics e.g., sulfonamides, amoxicillin) Oral Contraceptives Sarcoidosis or Lofgren's syndrome Ulcerative Colitis, Crohns, Bechet's Micro: TB Viral: HSV, EBV, HIV, HepB, HepC Bacterial: Campylobacter, Rickettsiae, Salmonella, Psittacosis, Bartonella, Syphilis Parasitic: Amoebiasis, Giardiasis #Erythema #Nodosum #Mnemonic #Causes #Differential #Diagnosis #Dermatology #SkinRash
