Evaluation of the relationship between age and gender of fossa navicularis magna with cone-beam computed tomography in orthodontic subpopulation

Kaplan, Fatma Akkoca; Yeşilova, Esra; Bayrakdar, İ̇brahim Şevki; Uğurlu, Mehmet

doi:10.4103/jasi.jasi_79_19

Cited by 4 publications

(4 citation statements)

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“…Also, FNM was detected in a greater percentage of the 30-39 age group than of the 40-49 and 50-59 age groups, and the greater than 60 age group showed higher values compared to the 40-49 age group. In terms of FNM frequency, while our results are compatible with some of the above-mentioned studies 20,22 , some inconsistencies are evident 6,7,21 . The lack of consistency among the vairous studies may be related to methodologic differences, sample size and properties of the samples (patients).…”

Section: Aslıhan Akbulut Et Al: Investigation Of the Prevalence And M...supporting

confidence: 89%

“…Murjani et al 20 evaluated 350 CBCT scans for the presence of skull base anomalies and reported 19.4% of images had detectable FNM; they also reported no difference between sexes and age groups with respect to the occurrence of FNM. Akkoca Kaplan et al 21 , in their recent study, investigated the prevalence of FNM by evaluating the CBCT scans of 195 patients. They defined 32 (16.4%) FNM and found no correlation between FNM and sex or age group.…”

Section: Discussionmentioning

confidence: 99%

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Investigation of the prevalence and main features of skull-base anomalies and characteristics of the sphenoid sinus using cone-beam computed tomography

Akbulut

Demirel

Orhan

2022

JKAOMS

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Objectives This study aimed to define the prevalence and characteristics of skull base anomalies and the features of sphenoid sinus pneumatization (SSP). Materials and Methods Five hundred cone-beam computed tomography scans were evaluated retrospectively for the presence of fossa navicularis magna (FNM), canalis basilaris medianus (CBM), sphenoid emissary foramen (SEF), and/or Onodi cells (OC). Patterns of the SSP and sphenoid sinus mucosa dimensions (SSMD) were also recorded. Results The prevalence of FNM, CBM, SEF, and OC was 26.0%, 22.4%, 47.4%, and 18.4%, respectively. Two hundred sixty-two (52.4%) sellar-type SSP were defined, followed by post-sellar 191 (38.2%), pre-sellar 31 (6.2%), and conchal 16 (3.2%) types. The frequency of SSMD less than 1 mm, 1-3 mm, and greater than 3 mm was 40.6%, 38.4%, and 21.0%, respectively. An SEF was detected more frequently in females, while SSMD greater than 3 mm was more frequent in males. An FNM was more prevalent in the 18-29 and 30-39 age groups and SEF was significantly less frequent in patients over 60 years of age compared to other age groups. A sinus mucosa larger than 3 mm was more common in the younger than 18 year group. The frequency of post-sellar-type pneumatization was lower in patients younger than 18 years. Conclusion Skull-base anomalies are common and may be detected incidentally during imaging procedures. The sphenoid sinus, its variations, and pneumatization patterns should also be taken into consideration in imaging procedures performed for various purposes.

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Section: Aslıhan Akbulut Et Al: Investigation Of the Prevalence And M...supporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Investigation of the prevalence and main features of skull-base anomalies and characteristics of the sphenoid sinus using cone-beam computed tomography

Akbulut

Demirel

Orhan

2022

JKAOMS

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“…Cankal et al 25 reported frequencies of 5.3% (26 of 492 dry skulls) and 3% (16 of 525 CT images). However, Bayrak et al, 1 Ersan, 3 Kaplan et al, 26 and Magat 27 all reported higher frequencies than in the current study: 7.6, 6.6, 17.4, and 27.5%, respectively.…”

Section: Discussioncontrasting

confidence: 68%

Morphological Measurement and Anatomical Variations of the Clivus Using Computed Tomography

Serindere

Günduz

Avsever³

2021

J Neurol Surg B Skull Base

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Objectives The aim of this study was to evaluate the clivus morphology, including fossa navicularis magna (FNM), canalis basilaris medianus (CBM), and craniopharyngeal canal (CC), on computed tomography (CT) images. Design This is a retrospective study. Setting Faculty of Dentistry, Department of Dentomaxillofacial Radiology. Participants The CT images of 500 patients (253 males; 247 females) were evaluated. Main Outcome Measures The prevalence of FNM, CBM, and CPC; the length, width, and depth of FNM; and CBM types were recorded. Also, a morphological analysis of the clivus (length of the clivus, angle between the clivus and the posterior margin of the foramen magnum, angle between the clivus and the dens axis, and anteroposterior diameter of the foramen magnum) was performed. Results FNM was identified in 5.4%, CBM in 4%, and CC in 0.8% of the study group. Type 5 CBM was not found. Type 6 was the most common CBM type. There was no significant correlation between the age and gender of patients with FNM. There were significant differences between the clivus length, the angle between the clivus and the dens axis, the anteroposterior diameter of the foramen magnum, and gender. Also, there was a significant difference between the angle between the clivus and the foramen magnum and age. Conclusions The anatomical variations of the clivus are rare and important for the oral and maxillofacial radiologist to make the differential diagnosis. These anatomical variations should not be confused with pathologic formations. The morphological measurements and anatomical variations of the clivus can be evaluated in detail on CT images.

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“…Since then this fossa became a point of interest for researchers. Many CT and MRI studies were conducted to elaborate on this fossa 11,12 . Later few case reports brought it into consideration of clinicians also.…”

Section: Discussionmentioning

confidence: 99%

Prevalence And Morphometric Analysis Of Fossa Navicularis Magna In Dry Human Skulls

Tasleem¹,

Hina²,

Qureshi³

et al. 2023

JRMC

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Introduction: Basiocciput is the part of occipital bone present on the inferior aspect of skull. Fossa Navicularis Magna-an osseous defect is a variation in normal anatomy of basiocciput. Lately few case reports presented this fossa as a cause of spread of infection from nasopharynx to brain resulting in meningitis and osteomyelitis. Objectives: This study aims to find the incidence and morphometry of this fossa in Pakistani populace to avoid any misdiagnosis or misinterpretations. Materials & Methods: This study was conducted on dry human skulls at King Edward Medical University Lahore. Fossa was measured in its transverse and vertical diameters and to locate the fossa its distance from various anatomical land marks such as foramen ovale, foramen Lacerum, carotid canal, occipital condyles, pharyngeal tubercle and posterior border of vomer was noted. Results: The incidence of this fossa was found to be 5.3% in Pakistani population. Predominantly oval shaped, fossa measured 5.5 and 3.06 mm in vertical and transverse diameters respectively. It was 12.2 mm posterior to vomer and 5.9 mm anterior to pharyngeal tubercle. Conclusion: This study is useful for radiologists and clinicians in avoiding any misinterpretations on radiographs and unnecessary investigations

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Evaluation of the relationship between age and gender of fossa navicularis magna with cone-beam computed tomography in orthodontic subpopulation

Cited by 4 publications

References 1 publication

Investigation of the prevalence and main features of skull-base anomalies and characteristics of the sphenoid sinus using cone-beam computed tomography

Investigation of the prevalence and main features of skull-base anomalies and characteristics of the sphenoid sinus using cone-beam computed tomography

Morphological Measurement and Anatomical Variations of the Clivus Using Computed Tomography

Prevalence And Morphometric Analysis Of Fossa Navicularis Magna In Dry Human Skulls

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