This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy, Subject name: Pharmacology
Topical mitomycin -C is used in(REPEAT) 
Select and explain. 
A. Sturge Weber syndrome, B. Laryngo tracheal stenosis, C. Endoscopic anhiofibroma, D. Skull base osteomyelitis
B: Laryngo tracheal stenosis
Answer: B: Laryngo tracheal stenosis 
Explanation: Refer American college of chest physician's, 2008 Mitomycin is an anti tumor antibiotic with alkyating agent like propey. It is used in superficial cancer not urinary bladder and for squamous cell carcinoma of anus The drug has radiomimetric effectw6 and also sensitizes hypoxic tumor cells to the effects of hypoxia. Application of topical mitomicin C after endoscopic dilation of laryngo tracheal stenosis reduces the rate of restenosis