Hi.... Thank you for your post. I have read your description and understand your concern. Broken nose do not cause growths like you have described. It might cause obstructive symptoms. There is a good possibility that the growth can get out when he blows his nose. All the nasal growth need not be cancer all the time. Certain microbial infection like Rhinosporidiosis, Nasal polyp or a Fungal ball can cause growth / mucosal hypertrophy. Chances of this being a cancer is less likely. FESS( FUNTIONAL ENDOSCOPIC SINUS SURGERY) is usually done to see such growth. Sometimes both diagnosis and treatment can be done in asingle sitting. To do this broken nose has to be corrected first. Kindly follow your doctors instruction for further follw up. Hope i cleared your query. Please get back to us if you have further query. Take care. Bye.