Abstract Background The aim of the present study was to evaluate retrospectively frequency anatomical variations in sinonasal region, which were frequently seen our cases, for whom coronal section paranasal computed tomography imaging (CPNCT) taken, as well correlation these with age and gender correlations identified one another. In study, CBCT scans a total 1532 (825 males 707 females) cases ...

 Exclusion criteria:  pre-existing conditions altering skull base anatomy (including trauma)  previous sinus or skull base surgery  congenital midface anomalies  nasal polyposis  premature birth  Measurements:  Averaged within age groups, 95% CI  Lengths: defined below  Percent pneumatization: the ratio of pneumatized bone to the total length of that boney margin  Significantly diffe...

This theory sees the growth of mastoid as a response to its muscle bearing duties resulting in a separation of the inner and outer plates due to pull of Muscles. In the potential space thus formed air enters simply as a result of atmospheric communication via eustachian tube. Blockage of this middle ear communication before completion of pneumatisation will result in variations or loss of pneum...

Background: The upper permanent canine tooth germ develops close to maxillary sinus (MS)1 therefore, displacement and MS pneumatization may have a link.2 This study aims evaluate the dimensions, volume, range of anterior vertical in bilaterally palatally (PDCs) buccally displaced (BDCs) compared normally erupted (NDCs) subjects. Methods: Cone-Beam-Computed-Tomography (CBCT) images 167 patients ...

Concha bullosa is the pneumatization of the concha and is one of the most common variations of the sinonasal anatomy. The histopathological changes caused by the infections which arise from the impaired aeration of conchal cavity are frequently found. Fungus ball of the nasal cavity is an extremely rare, fungal infection with only three cases reported previously. In this paper, we present the f...

—The vertebrae of sauropod dinosaurs are characterized by complex architecture involving laminae, fossae, and internal chambers of various shapes and sizes. These structures are interpreted as osteological correlates of a system of air sacs and pneumatic diverticula similar to that of birds. In extant birds, diverticula of the cervical air sacs pneumatize the cervical and anterior thoracic vert...