Investigation of the calcification at the petroclival region through Multi-slice Computed Tomography of the skull base

İnal, Mikail; Muluk, Nuray Bayar; Burulday, Veysel; Akgül, Mehmet; Özveren, Mehmet Faik; Çelebi, Umut Orkun; Şimşek, Gökçe; Daphan, Birsen Ünal

doi:10.1016/j.jcms.2016.01.018

Cited by 13 publications

(25 citation statements)

References 15 publications

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“…This structure was amongst the least commonly mineralised skull base ligaments (10.8%), which is compatible with the published range of 5–25% [ 11 , 16 , 37 , 43 – 45 ].…”

Section: Discussionsupporting

confidence: 90%

“… Joo et al [ 44 ] 10 cadaveric heads Korea – – – 25% Anatomical features that may predispose to abducens palsy. Inal et al [ 16 ] 130 skull bases on CT Turkey 20–78 years 9.8% (right); 9.8% (left) 2.3% (right); 2.9% (left) – Association between mineralisation and advancing age. Neurosurgical implications.…”

Section: Resultsmentioning

confidence: 99%

“… Posterior petroclinoid ligament Current study 240 CT studies UK 6–80 years 16.7% 1.2% 18.3% (Includes mixed 0.4%) – Cederberg et al [ 23 ] Lateral cephalometric radiographs of 255 subjects presenting for orthodontic evaluation USA 8–76 years 23% 9% 32% Very weak correlation with advancing age. Inal et al [ 16 ] 130 temporal bone CTs Turkey 20–78 years 26.6% (right); 29.5% (left) 5.2% (right), 4.6% (left) – Neurosurgical implications. Anatomical features that may predispose to cranial nerve palsy.…”

Section: Resultsmentioning

confidence: 99%

“…The clinical significance of petrosphenoid ligamentous mineralisation principally arises from its close relationship to the abducens nerve, which passes below it within Dorello’s canal [ 17 ]. For example, in the setting of raised intracranial pressure and uncal herniation, the mineralised ligament may protect the abducens nerve, but may present a noncompliant structure against which the oculomotor nerve may be compressed [ 16 ]. Furthermore, the passage of the abducens nerve beneath a densely mineralised ligament is postulated to have a role in abducens nerve palsy as it would create a noncompliant structure around the nerve, which would limit expansion in the setting of neural inflammation [ 11 ].…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, the passage of the abducens nerve beneath a densely mineralised ligament is postulated to have a role in abducens nerve palsy as it would create a noncompliant structure around the nerve, which would limit expansion in the setting of neural inflammation [ 11 ]. Finally, the petrosphenoid ligament is a helpful landmark during subtemporal-transtentorial-transpetrous approaches to the posterior and middle cranial fossae and its mineralisation may lead to the misidentification of anatomical localisation [ 16 , 74 ].…”

Section: Discussionmentioning

confidence: 99%

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Skull base ligamentous mineralisation: evaluation using computed tomography and a review of the clinical relevance

et al. 2019

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Objectives To determine the frequency, morphologic and demographic characteristics, and clinical relevance of the mineralisation of six skull base ligaments (interclinoid, caroticoclinoid, petrosphenoid, posterior petroclinoid, pterygospinous, and pterygoalar). Methods This is a retrospective review of 240 CT scans of the paranasal sinuses (ages 6–80 years). A limited systematic review was performed primarily using Embase and Medline databases. Results Ligamentous mineralisation was well delineated on CT and occurred at ≥ 1 location in 58.3% of patients. There was a nonsignificant trend towards a greater incidence with advancing age. The interclinoid and posterior petroclinoid ligaments were most commonly mineralised (22.1% and 18.3%, respectively); the petrosphenoid and pterygoalar ligaments were least frequently mineralised (10.8% and 6.3%, respectively). The mean age of patients with posterior petroclinoid mineralisation was significantly greater than those with interclinoid and petrosphenoid mineralisation and was not seen in patients aged 6–20 years. The literature review highlighted the clinically relevant potential for mineralised ligaments to cause barriers to surgical access (e.g. to the foramen ovale), increase the risk of neurovascular injury during surgery at the skull base (e.g. during anterior clinoidectomy), and predispose to neural impingement. Conclusions Skull base ligamentous mineralisation is commonly encountered on CT imaging. Given the potentially significant clinical implications, an understanding of the morphological appearances is of importance to those planning interventions at the skull base. To the authors’ knowledge, this study is the first to comprehensively evaluate such a wide range of skull base ligaments using CT. For some ligaments, the incidence on CT has not been previously described.

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“…This structure was amongst the least commonly mineralised skull base ligaments (10.8%), which is compatible with the published range of 5–25% [ 11 , 16 , 37 , 43 – 45 ].…”

Section: Discussionsupporting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Skull base ligamentous mineralisation: evaluation using computed tomography and a review of the clinical relevance

et al. 2019

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Microanatomical study of arachnoid granulations and meningeal architecture around Meckel’s cave

et al. 2023

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Although the microanatomy of Meckel’s cave (MC) has been well studied, there are still controversies regarding the meningeal architecture of the space. Moreover, there are only general mentions of the arachnoid granulations near MC in just a few sources. This study is aimed at determining the frequency, location, and anatomical variability of the main clusters of arachnoid granulations around MC. The dissection involved 26 isolated specimens of MC fixed in formalin (neutral buffered, 10%). This number included five freshly harvested specimens examined histologically. Additional paraffin block with MC horizontal section was taken from our neuroanatomical collection. Carefully selected anatomical and histological techniques were applied to assess the complex relationships between the arachnoid granulations and adjacent structures. Arachnoid granulations were found around MC in all specimens with different anatomical variations. The main clusters of arachnoid granulations were close to the trigeminal ganglion and its divisions. The dorsolateral wall of MC was a thick layer formed by interweaving bundles of collagen fibers arranged in various directions. The entire MC was surrounded by a dural sleeve (envelope). This sleeve separated MC from the lateral sellar compartment. At its anterior (rostral) end, it formed a cribriform area pierced by individual fascicles of the trigeminal nerve’s primary divisions. The connective tissue forming the sleeve was not only continuous with the epineurium but also shifted to the perineuria surrounding individual nerve fascicles. The meningeal architecture around MC has a complex and multilayer arrangement with a collagenous sleeve closely related to the trigeminal ganglion. Arachnoid granulations are typically found around MC.

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The effect of morphological variability of Dorello’s canal on surgical procedures - a review

Maślankal¹,

Zielinska²,

Tubbs³

et al. 2022

Annals of Anatomy - Anatomischer Anzeiger

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Investigation of the calcification at the petroclival region through Multi-slice Computed Tomography of the skull base

Cited by 13 publications

References 15 publications

Skull base ligamentous mineralisation: evaluation using computed tomography and a review of the clinical relevance

Skull base ligamentous mineralisation: evaluation using computed tomography and a review of the clinical relevance

Microanatomical study of arachnoid granulations and meningeal architecture around Meckel’s cave

The effect of morphological variability of Dorello’s canal on surgical procedures - a review

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