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ERYTHEMA NODOSUM |
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infections: |
viral: |
eg. herpes |
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bacterial: |
streptococcal (including rheumatic fever)staphylococcal diphtheria tuberculosis leprosy ['erythema nodosum leprosum']whooping cough mycoplasma cat-scratch disease (Bartonella henselae)psittacosis (Chlamydia psittaci)lymphogranuloma venereum (Chlamydia trachomatis)chancroid (Haemophilus ducreyi)meningococcal septicaemia |
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fungal: |
histoplasmosis blastomycosis coccidioidomycosis |
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other: |
sarcoidosis [commonest cause in developed countries]inflammatory bowel disease reactive arthritis, eg. following Yersinia, Salmonella or Campylobacter enteritisleukaemias and lymphomas Langerhans cell histiocytosis connective tissue diseases, eg. SLE, Behçet's disease, PANchronic active hepatitis allergy to certain foods idiopathic (� recurrent) |
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drugs: |
aspirin sulphonamides penicillin oral contraceptive pill |
iodide bromide tetracycline |
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