ENT CLASSIFICATIONS :

Sade classification: Retraction of pars tensa

Toss classification : Retraction of pars flaccida

Antoni classification:Acoustic neuroma

Derlacki classification: Congenital
cholesteatoma

Nelson classification: CSOM

Shea classification :Meniere's disease

Isshika classification:Thyroplasty

Wullstein classification :Tympanoplasty

Fisch classification:Glomus tumours.