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: Pharmacology
Topical mitomycin–C is used in : 
Select and explain. 
A. Sturge–Weber syndrome, B. Laryngotracheal stenosis, C. Endoscopic angiofibroma, D. Skull base osteomyelitis
B: Laryngotracheal stenosis
Answer: B: Laryngotracheal stenosis 
Explanation: Mitomycin is an anti-tumor antibiotic with an alkylating agent like property. It is used in superficial cancer of the urinary bladder and for squamous cell carcinoma of the anus.
The drug has radiomimetic effects and also sensitizes hypoxic tumor cells to the effects of hypoxia.
Application of topical mitomycin C after endoscopic dilation of laryngotracheal stenosis reduces the rate of restenosis.