<prompt> Prior HO ear surgery Scanty, foul smelling, painless discharge from the ear is characteristic feature of which of the following lesions -ASOMCholesteatomaCentral perforationOtitis externa  <response>: Cholesteatoma attico antral type of CSOM marginal perforation is characterised by scanty foul smelling, painless discharge from the ear. The foul smell is due to saprophytic infection and osteitis 