mastoid antrum

Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.

mas·toid an·trum

n. antro mastoideo, cavidad que sirve de comunicación entre el hueso temporal, el oído medio y las células mastoideas.
References in periodicals archive ?
Surgical exploration identified a large tumor that involved the mastoid air cells from the mastoid antrum all the way up to the stylomastoid foramen.
In early stages, it was used to provide information regarding pathology in the epitympanum, mesotympanum and mastoid antrum and to check the assessment of ossicular chain mobility.
CSOM without cholesteatoma is indicated on CT when air cells appear opaque by soft tissue or fluid densities but maintain their normal trabecular pattern or whenever there is obliteration of mastoid antrum and periantral cells by increased reactive bone formation/sclerosis17.
4 CG can be seen in various areas of the body - especially within the mastoid antrum and air cells within the temporal bone - and mainly associated with chronic middle ear diseases, however it is extremely rare in paranasal sinuses and almost 40 cases of maxillary sinus CG have been reported.
Data was obtained from hospital records regarding presence or absence of a patent mastoid antrum, the state of middle ear mucosa, whether it was healthy or unhealthy and histopathology reports regarding evaluation of pathology of tympanic sclerosis, along with other clinical details.
Also, patients having all 3-ossicle involvements were subject to huge extension of cholesteatoma into tympanic cavity, attic, and mastoid antrum.
The mastoid air cell system represents a more or less extensive system of interconnecting air filled cavities arising from the walls of the mastoid antrum and walls of the middle ear.
To our knowledge, only 44 cases have been reported since 1964, 12 of which were reported in the last 10 years, (1-7) Cholesterol granuloma is seen associated with chronic middle ear disease, most frequently in the mastoid antrum and air cells of the temporal bone.
Chronic suppurative otitis media has been traditionally described as a chronic inflammation of part or the entire tympanomastoid compartment comprising of Eustachian tube, the tympanic cavity, the mastoid antrum and all the pneumatized spaces of temporal bone associated with perforation of the tympanic membrane and otorrhoea.
1] The nondependent soft tissue in middle ear cavity, widening of aditus ad antrum with loss of its "figure of 8" appearance and expansion of the mastoid antrum by soft tissue favours the diagnosis of cholesteatoma.
Cholesteatoma and granulation tissue were removed from the mastoid cavity and middle ear, and the bony plate separating the mastoid antrum and the dura (tegmen tympani) was found to be eroded by the disease.