Anatomy and Diseases of the Greater Wings of the Sphenoid                     Bone

Cochinski, Renata; Agarwal, Mohit; Albuquerque, Jessica; Almeida, Carolina Ávila de; Stricker, Rafaela P.; Uberti, Marcela F.; Casqueiro, Ana Paula K.; Mendonça, Gabriel Soares; Nascimento, Galba R. S. do; Miraldi, Fernanda; Decnop, Marcos

doi:10.1148/rg.210094

Cited by 8 publications

(6 citation statements)

References 41 publications

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“…On CT, FD demonstrates a characteristic ground-glass appearance and expansion of the bone with preserved cortex and smooth, regular bony margins (4). Figure 2 shows a CT scan from an 18-year-old male with FD involving the sphenoid bone, which manifested as bilateral proptosis and orbital dystopia (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…IM, with a varied sclerotic appearance, can mimic FD with expanded bone. However, a combination of more heterogeneous hyperostotic pattern, bony surface irregularity, and extraosseous enhancement, especially on contrast-enhanced MRI, is critical in making the diagnosis (4). On MRI, both conditions can show the osseous expansion with profoundly low T2 signal due to hyperostosis in IM and fibrous architecture in FD, with intraosseous enhancement.…”

Section: Discussionmentioning

confidence: 99%

“…On MRI, both conditions can show the osseous expansion with profoundly low T2 signal due to hyperostosis in IM and fibrous architecture in FD, with intraosseous enhancement. By contrast, FD has a more homogenous pattern, with no extraosseous extension outside the periosteum/bony margin and no soft tissue component (4). Consequently, the cortical contour remains smooth and regular, and only intramedullary expansion is seen.…”

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Intraosseous Meningioma Mimicking Fibrous Dysplasia

Brennan,

Gutierrez,

Mukherjee

et al. 2024

Otol Neurotol

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Intraosseous Meningioma Mimicking Fibrous Dysplasia

Brennan,

Gutierrez,

Mukherjee

et al. 2024

Otol Neurotol

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“…It is precisely because of the lack of a suitable method for separating fragile bones such as the sieve bone and the pterygoid bone that there is currently a gap in the morphological statistics and growth mechanisms of these bones. Cochinski mentions a systematic approach to understanding the sphenoid wings, a study that would be better served by isolating the sphenoid bone as a whole [7]. In addition, in recent years, the research of AI arti cial intelligence to separate the whole body anatomical structure of the human body is gradually emerging, but there are fewer literatures for exploring the method of automatic segmentation of cranial bone block, which may also be a bottleneck in the separation method.…”

Section: Introductionmentioning

confidence: 99%

Research and application discussion of cranial bone model preparation method based on three-dimensional reconstruction and 3D printing technology

Peng,

Guo,

Yang

et al. 2024

Preprint

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Purpose The aim of this study was to find an alternative method to meet traditional human anatomy teaching and clinical needs in order to solve the problem of cranial specimen attrition and specimen resource shortage due to long-term use. Methods We performed a CT scan of a well-preserved male cranial specimen and used Mimics 19.0 software for 3D reconstruction and cranial block separation. Subsequently, we compared the recognition ability of the processed cranial digital model with that of the 3D body digital model and used 3D printing to create the cranial model and compare it with the physical specimen. Results Twenty-two cranial bone block models were obtained, excluding the hyoid bone. Their 3D reconstructed digital models had better bony landmark recognition than the 3D body human digital models, and the differences between the 3D printed models and the physical specimens were minimal. In addition, only one STL file was required to produce the cranial models, which facilitates repetitive printing at any time. Conclusion By isolating cranial bone blocks through 3D reconstruction techniques and preparing high-quality cranial models in combination with 3D printing techniques, this study solves the problem of shortage of cranial teaching specimens for the sustainable development of clinical and medical schools.

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“…Two greater wings extend laterally from the body carrying three main foramina (the foramen rotundum, the foramen ovale and the foramen spinosum), which host vital neurovascular structures (e.g., branches of the trigeminal nerve, arteries and veins). On the ectocranial surface of the body, two medial and two lateral pterygoid processes extend inferiorly for the attachment of masticatory muscles and of other structures of the neck [4].…”

Section: Introductionmentioning

confidence: 99%

Correlation Analysis on Anatomical Variants of Accessory Foramina in the Sphenoid Bone for Oncological Surgery

Palamenghi,

Cellina,

Cè

et al. 2023

Cancers

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The sphenoid bone presents several anatomical variations, including accessory foramina, such as the foramen meningo-orbitale, the foramen of Vesalius, the canaliculus innominatus and the palatovaginal canal, which may be involved in tumor invasion or surgery of surrounding structures. Therefore, clinicians and surgeons have to consider these variants when planning surgical interventions of the cranial base. The prevalence of each variant is reported in the published literature, but very little information is available on the possible correlation among different variants. Here, 300 CT scans of patients (equally divided among males and females) were retrospectively assessed to investigate the presence of the foramen meningo-orbitale, the foramen of Vesalius, the canaliculus innominatus and the palatovaginal canal. Possible differences in the prevalence of each accessory foramen according to sex were assessed, as well as possible correlations among different variants through the Chi-square test (p < 0.01). Overall, the prevalence of the foramen meningo-orbitale, the foramen of Vesalius, the canaliculus innominatus and the palatovaginal canal was 30.7%, 67.7%, 14.0% and 35.3%, respectively, without any difference according to sex (p > 0.01). A significant positive correlation was found between the foramen of Vesalius and canaliculus innominatus, both in males and in females (p < 0.01). In detail, subjects with canaliculus innominatus in 85.7–100.0% of cases also showed the foramen of Vesalius, independently from sex and side. The present study provided novel data about the prevalence of four accessory foramina of the sphenoid bone in an Italian population, and a correlation between the foramen of Vesalius and the canaliculus innominatus was found for the first time. As these accessory foramina host neurovascular structures, the results of this study are thus useful for appropriate planning surgical procedures that are tailored to the anatomical configuration of the patient and for improving techniques to avoid accidental injuries in cranial base surgery. Knowledge of the topography, frequencies and the presence/absence of these additional foramina are pivotal for a successful procedure. Clinicians and surgeons may benefit from these novel data for appropriate recognition of the variants, decision-making, pre-operative and treatment planning, improvement of the procedures, screening of patients and prevention of misdiagnosis.

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Anatomy and Diseases of the Greater Wings of the Sphenoid Bone

Cited by 8 publications

References 41 publications

Intraosseous Meningioma Mimicking Fibrous Dysplasia

Intraosseous Meningioma Mimicking Fibrous Dysplasia

Research and application discussion of cranial bone model preparation method based on three-dimensional reconstruction and 3D printing technology

Correlation Analysis on Anatomical Variants of Accessory Foramina in the Sphenoid Bone for Oncological Surgery

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