Figure - available from: Case Reports in Anesthesiology
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Fluoroscopy-guided diagnostic block of the left mandibular nerve. Anteroposterior (a) and lateral (b) views show the needle tip directed toward the left foramen ovale.
Source publication
Ossification of the tentorium cerebelli over the trigeminal notch is rare, but it may cause compression of the trigeminal nerve, leading to trigeminal neuralgia (TN). We were unable to find any previously reported cases with radiological evaluation, although we did find one case with surgically proven ossification of the tentorium cerebelli. Here,...
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Background:
Ossification of the ligamentum flavum (OLF) is being increasingly recognized as a cause of thoracic myelopathy. This study was to describe a rare clinical entity of spinal cord kinking (SK) in thoracic myelopathy secondary to OLF.
Methods:
The data of 95 patients with thoracic myelopathy secondary to OLF were analyzed retrospectively...
Citations
... These etiologies may manifest as symptomatically identical (i.e., excruciating neuropathic pain during stimulation of the face or oral cavity, and external and middle ear); therefore, magnetic resonance imaging and computed tomography (CT) angiography should be employed for preoperative neurodiagnostics. Notably, the tentorium cerebelli is susceptible to age-related ossification and have been observed throughout the tentorium cerebelli and other dura mater with no discrete zones predisposed to ossification [9,10]. Kıroğlu et al. [9] reports that tentorial, falcian, and dural ossifications occur in 10% of elderly individuals. ...
Ossification of parts of the intracranial dura mater is common and is generally accepted as an age-related finding. Additionally, duplication of the abducens nerve along its course to the lateral rectus muscle is a known, although uncommon anatomical variant. During routine cadaveric dissection, an ossified portion of dura mater traveling over the trigeminal nerve's entrance (porus trigeminus) into the middle cranial fossa was observed unilaterally. Ipsilaterally, a duplicated abducens nerve was also observed, with a unique foramen superolateral to the entrance of Dorello's canal. To our knowledge, there has been no existing report of a simultaneous ossified roof of the porus trigeminus with an ipsilateral duplicated abducens nerve. Herein, we discuss this case and the potential clinical and surgical applications. We believe this case report will be informative for the skull base surgeon in the diagnosis of neuralgic pain in the frontomaxillary, andibular, orbital, and external and middle ear regions.
