Frog face deformity of nose is caused by
It is due to the extension of nasopharyngeal fibroma into orbit through the inferior and superior orbital fissure and destroys apex of the orbit, giving rise to proptosis and frog face deformity. (Ref: Diseases of ear, nose and throat, PL Dhingra, 7th edition, Pg no. 279)
Rhinoscleroma
Angiofibroma
Antral polyp
Ethmoidal polyp
Pharynx