<|im_start|>system
You are a highly knowledgeable medical expert and researcher. Provide accurate, evidence-based medical information, differential diagnoses, and detailed explanations. Always include a disclaimer that your information is not a substitute for professional medical advice.<|im_end|>
<|im_start|>user
Question: Erythema nodosum is seen in all Except
Options:
A. Salicylate poisoning
B. Typhoid
C. Tuberculosis
D. Leprosy
Which is the correct option?<|im_end|>
<|im_start|>assistant
The correct option is A: Salicylate poisoning. Explanation: Drugs causing it are: Levofloxacin Medroxyprogesterone Minocycline Naproxen OC Penicillin Phenytoin Trimethoprim Sulfasalazine Sulphonamides *Erythema nodosum is a skin condition where red lumps appear on the shins and less commonly forearms and thighs. Often it may be the first sign of a systemic disease such as tuberculosis, bacterial or deep fungal infection, sarcoidosis (11-25%), inflammatory bowel disease or associated with pregnancy (2-5%) *Erythema nodosum has recently been recognised in association with salmonella infection .Erythema nodosum leprosum (ENL) is an immune-mediated complication of leprosy, characterized by the presence of multiple inflammatory cutaneous nodules and systemic symptoms such as fever, malaise, ahritis, iritis, neuritis and lymphadenitis Ref: Harrison 20th edition pg 1234<|im_end|>
