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  • auditory
  • A middle fossa craniotomy is one means to surgically remove acoustic neuromas (vestibular schwannoma) growing within the internal auditory canal of the temporal bone. (wikipedia.org)
  • Different approaches have been developed to find the position of the internal auditory canal (IAC)in middle cranial fossa approach. (ac.ir)
  • A feasibility study was performed to investigate the combination of cone beam computed tomography (CBCT), optical coherence tomography (OCT), and laser ablation to assist a surgeon in a middle cranial fossa approach by outlining the internal auditory canal (IAC). (ac.ir)
  • The main manifestation of the condition is the development of symmetric, benign brain tumors in the region of the cranial nerve VIII, which is the "auditory-vestibular nerve" that transmits sensory information from the inner ear to the brain. (wikipedia.org)
  • Anteriorly
  • The mastoid antrum (tympanic antrum, antrum mastoideum, Valsalva's antrum) is an air space in the petrous portion of the temporal bone, communicating posteriorly with the mastoid cells and anteriorly with the epitympanic recess of the middle ear via the aditus to mastoid antrum (entrance to the mastoid antrum). (wikipedia.org)
  • spinal cord
  • These classification of cysts are embedded in the endoderm (inner layer) and the ectoderm (outer layer) of the cranial or spinal cord germ layers. (wikipedia.org)
  • hypoplasia
  • However, the actual location of the fossa and the influence that hypoplasia or deformity may have on the position of the fossa are unknown. (bioportfolio.com)
  • We hypothesized that the fossa is located in the center of the acetabulum, regardless of hypoplasia or deformity. (bioportfolio.com)
  • meningeal artery
  • Conversely, in a minority of cases (less than 1%), it may also be duplicated, particularly when the middle meningeal artery is also duplicated. (wikipedia.org)
  • syndrome
  • On the other hand, a number of symptoms may result from large cysts: Cranial deformation or macrocephaly (enlargement of the head), particularly in children Cysts in the suprasellar region in children have presented as bobbing and nodding of the head called bobble-head doll syndrome. (wikipedia.org)
  • morphology
  • Walrus cranial morphology is different, but they are aquatic and use specialized buccal and facial muscles to feed on mollusks, fossils of which are abundant in the Domanda Formation, and they probably provide the best ecological model among living mammals. (wikipedia.org)
  • Remingtonocetids had longer snouts than other archaeocetes, but except that the cranial morphology also varied considerably, probably reflecting different diets. (wikipedia.org)
  • facial
  • Cephalometric analysis depends on cephalometric radiography to study relationships between bony and soft tissue landmarks and can be used to diagnose facial growth abnormalities prior to treatment, in the middle of treatment to evaluate progress or at the conclusion of treatment to ascertain that the goals of treatment have been met. (wikipedia.org)
  • internal
  • Also visible in the posterior cranial fossa are depressions caused by the venous sinuses returning blood from the brain to the venous circulation: Right and left transverse sinuses which meet at the confluence of sinuses (marked by the internal occipital protuberance). (wikipedia.org)
  • features
  • A combination of cranial features indicate that Makaracetus had a short, muscular proboscis similar to a tapir. (wikipedia.org)
  • Comparison of juvenile and mature individuals suggest that Aulacephalodon demonstrated a positive allometric growth pattern for their cranial features and a negative allometric growth pattern for their tusk and orbit size as ontogenetic age increases. (wikipedia.org)
  • large
  • the pakicetid scapulae have large supraspinous fossae with small acromions, in contrast to other cetaceans. (wikipedia.org)
  • The lower jaw shows that Ambulocetus had an unusual soft tissue connecting the back of the jaw to the middle ear - a small equivalent to the large sound-receiving fat pad in modern odontocetes. (wikipedia.org)
  • material
  • The genus includes two species: the type species S. mirus from Scotland, which is known from two mostly complete skulls and other cranial material, and the species S. pereger from Nova Scotia, which is known from a single fragment of the skull table. (wikipedia.org)
  • During the following two decades, more research resulted in additional pakicetid cranial material and by 2001 postcranial material for the family had been described. (wikipedia.org)
  • mass
  • Idiopathic/autoimmune granulomatous orchitis - Middle aged, sudden onset mass (occasionally insidious and painless). (radnotes.co.nz)
  • early
  • Spathicephalus is an extinct genus of stem tetrapods (early four-limbed vertebrates) that lived during the middle of the Carboniferous Period. (wikipedia.org)
  • Makaracetus bidens, a new protocetid archaeocete (Mammalia, Cetacea) from the early middle Eocene of Balochistan (Pakistan)" (PDF). (wikipedia.org)