Jan 9, 2023 · The anterior margin is partly defined by the tympanic part of the temporal bone at the plane of the tympanomastoid suture. The mastoid part is fused anterosuperiorly with the …

Jan 21, 2024 · The tympanomastoid fissure is one of the intrinsic fissures of the temporal bone, located parallel and posterior to the bony external auditory canal, dividing the tympanic part of …

Aug 15, 2025 · petrotympanic (Glaserian) fissure tympanosquamous fissure tympanomastoid fissure There are many named extrinsic fissures between the temporal bone and other cranial …

Jul 24, 2025 · Acute mastoiditis refers to a suppurative infection of the mastoid air cells. It is the most common complication of acute otitis media. Terminology In acute otitis media, an …

Dec 31, 2020 · lateral: gives the attachment to the cartilaginous part of the external acoustic meatus, and fuses posteriorly with the mastoid part of the temporal bone, via the …

Jan 1, 2021 · Mastoid air cell opacification can occur in a number of situations and can include a spectrum of inflammatory, neoplastic, vascular, fibro-osseous, and traumatic changes. …

Jun 8, 2023 · The mastoid air cells (cellulae mastoideae) represent the pneumatization of the mastoid part of the temporal bone and are of variable size and extent. Gross anatomy At the …

Mar 1, 2025 · It then passes superiorly through the mastoid before running laterally along the floor of the middle ear and exiting the skull to the preauricular soft tissues via the tympanomastoid …

Jan 8, 2021 · Chronic otomastoiditis is defined as persistent or recurrent inflammation of the middle ear (chronic otitis media) and mastoid, lasting usually for a minimum of 12 weeks, often …

Jun 12, 2025 · Cholesterol granulomas, also sometimes called chocolate cysts of the ear or blue-domed cysts, are a special type of middle ear granulation tissue that usually occurs at the …