Anomalies of the clivus of interest in dental practice: A systematic review

McCartney, Troy E.; Mupparapu, Mel

doi:10.5624/isd.20210039

Cited by 2 publications

(1 citation statement)

References 15 publications

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“…It results from the fusion of basisphenoidal and basioccipital bones in 2 nd month of intrauterine life until sphenooccipital synchondrosis ossification 8 . Sometimes this ossification remains incomplete due to the remnant of notochord and results in the formation of a notch-like rounded osseous defect named Fossa Navicularis Magna 9,10 .…”

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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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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Canalis Basilaris Medianus as an Anatomical Variation in the Basilar Part of the Occipital Bone: A Descriptive Cone Beam Computed Tomographic Study

Darwin,

Babu,

Ajila

et al. 2024

Acta Medica Bulgarica

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Objectives: Canalis basilaris medianus (CBM) is a unique anatomical variation located in the basal occipital region of the skull, rarely encountered in head and neck radiographic imaging. The aim of the present study was to evaluate the prevalence and types of CBM using Cone Beam Computed Tomography (CBCT) scans. Materials and Methods: CBCT (Full FOV) images of 200 patients aged between 10 to 70 years were selected for the current retrospective study following the inclusion and exclusion criteria. The image sections from the scan data were scrutinized for the presence of CBM, in addition to its classification based on the type of morphology. The presence and types of CBM were recorded based on the age and gender. The chi-square test was used to analyze the presence and types of CBM with regard to gender and age group. Results: The overall prevalence of CBM was estimated as 9.5%. CBM was present in 13% of males and 3% of females (p = 0.021). Considering the types of CBM, the superior recess type was predominantly observed followed by the inferior recess, superior and inferior type. However, there was no significant gender-based differences noted among the types of CBM (p > 0.05). Also, there was no statistically significant difference noted in the prevalence of CBM in different age groups (p > 0.05). Conclusion: It is necessary for maxillofacial radiologists to have a solid understanding of both normal and variant skull-base anatomy to facilitate recognition of variants such as CBM in order to recognize the associated anomalies. To our knowledge, this was the first study done which assesses the gender-based differences among the various types of CBM.

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Anomalies of the clivus of interest in dental practice: A systematic review

Cited by 2 publications

References 15 publications

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

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

Canalis Basilaris Medianus as an Anatomical Variation in the Basilar Part of the Occipital Bone: A Descriptive Cone Beam Computed Tomographic Study

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