mastoid air cell


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mastoid air cell

[′ma‚stȯid ′er ‚sel]
(anatomy)
References in periodicals archive ?
It is thought that CSOM is usually associated with sclerosis of the mastoid, but various authors in the past while operating on atticoantral disease ear found that the mastoid air cell system may be cellular or hypocellular also.
Assessment of the size of mastoid air cell system: The area of the cell system was determined by planimetry of the X-ray picture of the ear in a lateral projection.
In a study by Sethi et al, in the normal ear, 84% had well pneumatized mastoid air cell system and 16% had poor pneumatization on x-ray.
An animal study of chimpanzees described epithelial buds from the antrum, visible at 34 weeks, as precursors of the mastoid air cell system.
In subtotal petrosectomy, the tympanic membrane, the ossicular chain, the posterior wall of the external meatus, and the mastoid air cells were surgically removed, with blind sac closure of the external meatus.
Further, there was opacification of the right mastoid air cells, left sphenoid sinus and bilateral frontal sinuses.
Magnetic resonance imaging of the temporomandibular joint: diagnostic difficulty caused by extensive pneumatization of the mastoid air cells. Skeletal Radiol.
Comparative study of the pneumatization of the mastoid air cells and paranasal sinuses using three-dimensional reconstruction of computed tomography scans.
Granulation tissue in the mastoid air cells and the middle ear were encountered and removed.
The main goals of open cavity mastoidectomy are to completely eradicate the disease, create a large enough meatus for examination and mastoid air cells, and provide a self-cleaning epithelized dry cavity, and achieve maximum hearing.
The pre-operative CT scans were reported to assess characteristic cholesteatoma findings, location and extension of soft tissues in middle ear, integrity of scutum, erosion of the ossicular chain, integrity of the thin bony septum of facial nerve canal, the semicircular canals and the tegmenextension of cholesteatoma outside the middle ear, integrity of mastoid air cells, trabeculae, as well as relationship and proximity of soft tissues with the tympanic membrane were assessed.
High resolution computed tomography (CT) of temporal bones demonstrated hipodense mass (35-49 HU) in the left external ear canal, middle ear, antrum and mastoid air cells without bony destruction.