Radical mastoidectomy is done for:
ASOM
Safe CSOM
Atticoantral cholesteatoma
Acute mastoiditis
(c) Atticoantral cholesteatoma(Ref. Cummings, 6th ed., 2190)These days MRM is preferred over radical mastoidectomy in the management of unsafe CSOM with or without complications except for a few areas
Operative Surgery