Persistent or recurrent inflammation of the space in the mastoid bone. It is often a complication of otitis media.
Also indexed as
Caries of mastoidChronic mastoiditisChronic suppurative mastoiditisFistula of mastoidPostaural mastoid fistulaRetroauricular fistulachronic mastoiditis with opacification of mastoidmastoid necrosispostaural fistulapostauricular fistula