This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
Tuberculides are seen in – 
Select and explain. 
A. Lupus vulgaris, B. Scrofuloderma, C. Lichen scrofulosorum, D. Erythema nodosum
C: Lichen scrofulosorum
Answer: C: Lichen scrofulosorum 
Explanation: The definite (true) tuberculides are erythema induratuni (Bazin's disease), papulonecrotic tuberculid, Lichen scrofulosorum.