This article discusses the epidemiology, presentation, and diagnostic work-up of nonparaganglioma jugular foramen tumors, and the management options and predicted outcomes. Paragangliomas are the most common jugular foramen tumors, but other nonparagangliomas are important to consider in a differential for jugular foramen tumors. This article specifically focuses on jugular foramen schwannomas, meningiomas, metastatic disease, and regional pathologies that may extend to the jugular foramen, such as endolymphatic sac tumors, chordomas, and chondrosarcomas. Operative approaches to these tumors are also reviewed.
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http://dx.doi.org/10.1016/j.otc.2014.12.008 | DOI Listing |
AJNR Am J Neuroradiol
January 2025
Department of Radiology (K.L.R, L.V.R., A.F.J.), Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts
Background And Purpose: This study investigates the practicality and utility of the "outline sign," which refers to the thin curvilinear hyperenhancing line that may be seen along the margin of a meningioma on a spin-echo postcontrast T1-weighted image. For cases in which the differential diagnosis may include other tumors, visualization of the outline sign may help to increase the diagnostic confidence for a meningioma. Therefore, in the temporal bone region such as the cerebellopontine angle or jugular foramen, where differential considerations may include a schwannoma or paraganglioma, we additionally investigated whether the outline sign may be observed in these nonmeningioma lesions.
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December 2024
Otorhinolaryngology Department, Unidade Local de Saúde de São João, Porto, PRT.
Objectives The aim of this anatomical study was to analyze distances and anatomical relations between the lower cranial nerves and important neck landmarks. Methods Anatomical study based on neck dissection in Thiel-embalmed cadavers. Anatomical relations and distances between the vagus (X), accessory (XI), and hypoglossal (XII) nerves and important neck landmarks were registered and compared.
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November 2024
Internal Medicine, Atal Bihari Vajpayee Institute of Medical Sciences and Dr. Ram Manohar Lohia Hospital, New Delhi, IND.
Collet-Sicard syndrome, resulting from the involvement of all four lower cranial nerves, is an extremely rare condition. This case report details a 69-year-old female patient who presented with classic signs and symptoms of lower cranial nerve palsies (IX, X, XI, and XII) and was subsequently diagnosed with Collet-Sicard syndrome secondary to tuberculosis at the base of the skull. A contrast-enhanced MRI of the neck revealed bone marrow edema in the clivus, occipital condyle, and C1 vertebra, along with diffuse surrounding soft tissue swelling and collection, findings consistent with tuberculosis.
View Article and Find Full Text PDFSurg Radiol Anat
December 2024
Department of Anatomy, Faculty of Medicine, Sivas Cumhuriyet University, Sivas, 58140, Turkey.
Purpose: The paracondylar process (PCP) is defined as the bony prominence extending from the outer side of the condyles on the outer surface of the occipital bone downwards towards the transverse process of the atlas (TPA). In this case report, the morphometry of the rarely seen PCP and its morphometric data with neighboring structures are evaluated.
Case Report And Results: Unilateral (right-sided) PCP was observed in the cranium of a Caucasian female.
Surg Neurol Int
November 2024
Department of Neurosurgery, University of Cincinnati Medical Center, Cincinnati, Ohio, United States.
Background: Glomus tumors around the jugular foramen and inner ear can have variable presentations, including lower cranial nerve palsies, tinnitus, hearing loss, or palpable neck mass. In general, these tumors are benign paragangliomas with the definitive treatment consisting of radiosurgery or surgery. Endovascular embolization can be added as a critical adjunctive therapy to reduce the tumor vascularity before surgical resection.
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