The jugular foramen jf, sometimes referred to as the posterior foramen lacerum, is situated in the floor of the posterior fossa posterolateral to the carotid canal, between the petrous temporal bone anterolaterally and the occipital bone posteromedially fig. Far lateral approach and jugular foramen part 2 of 2 youtube. Jugular foramen tumors iowa head and neck protocols. It is one of the several oval or circular openings foramina in the base of the skull. A morphometric study of the jugular foramen in human adult. Pdf the goal in paraganglioma resection is to allow adequate exposure to remove the lesion while. The jugular foramen is a large foramen opening in the base of the skull, located behind the carotid canal. This chapter discusses the jugular fossa with a description of the anatomy, a discussion of the radiological imaging techniques.
Far lateral approach and jugular foramen part 2 of 2. Pdf surgical anatomy of the jugular foramen jacques. The jugular foramen is usually described as being divided into two parts by a fibrous or bony septum, called the jugular spine, into the pars nervosa. Any information contained in this pdf file is automatically generated from digital material. Anteriorly, lies the jugular foramen related pathology. Tumors of the jugular foramen remain challenging lesions despite advances in surgical technique and medical technology. Jugular foramen article about jugular foramen by the free. Pronunciation of jugular foramen with 1 audio pronunciation and more for jugular foramen. Knowledge of the anatomy of the jugular foramen is crucial to this endeavor. Foramen jugulare definition of foramen jugulare by medical. Interventricular foramen, channels connecting ventricles in the. Foramen definition of foramen by the free dictionary.
Tumors with extensive extra and intracranial components necessitate both radical neck dissection maneuvers combined with skull base approaches. Various morphometric data of jugular foramen on indian population are available, but they were done from the exocranial aspect of skull base only,3,8,9,10,11,12, which is not a complete morphometry of jugular foramen. Jugular foramen tumors are rare skull base lesions that present diagnostic and complex management problems. The jugular foramen jf is formed by the edge of the occipital bone forming the jugular notch, and the petrous temporal bone is excavated to form jugular fossa, which accommodates the superior bulb of internal jugular vein. N2 the complexity of the jugular foramen can be appreciated once its deep location, variability in shape and. The sigmoid sinus courses anteriorly into the jugular bulb 2. Far lateral approach and jugular foramen part 1 of 2 youtube. The first page of the pdf of this article appears above. Anatomy in and on the jugular foramen springerlink. Jugular foramen syndrome and allied syndromes neurology. In it are joined the sigmoid and the inferior petrosal sinuses.
Jugular foramen tumors are rare cranial base lesions that present diagnostic and management difficulties. The most common jugular foramen lesions are nontumoral pseudolesions eg, asymmetrically enlarged jugular foramen, high or protruding jugular bulb and tumors eg, paraganglioma, metastasis. The jugular foramen, also called the posterior foramen lacerum, is situated in the posterior fossa lateral to the carotid canal. The tympanic branches of 9th and 10th cranial nerves also pass through jugular foramen. Quizlet flashcards, activities and games help you improve your grades. In the jugular foramen a meningeal nerve branches off to supply the dura mater in the posterior cranial fossa. The term foramen is not strictly accurate because the jf resembles a canal with endocranial and exocranial openings. The jugular foramen courses anteriorly, laterally, and inferiorly as it insinuates itself between the petrous temporal bone and the occipital bone gross anatomy. Jugular foramen definition at, a free online dictionary with pronunciation, synonyms and translation. Notice also the difference in signal intensity of both foramina due to flow. The jugular foramen jf is a bony channel that transmits vessels and cranial nerves ix, x, and xi cnix, cnx, and cnxi through the skull base into the carotid space.
Jugular foramen definition of jugular foramen by the free. The pars nervosa is the anteromedial portion of the jugular. An auricular branch supplies the exterior of the ear drum, posterior wall of the external auditory meatus and cranial surface of the auricle. Takanori fukushima, in schmidek and sweet operative neurosurgical techniques sixth edition, 2012. In addition to its intrinsic pathologic conditions, a variety of lesions can arise from the contiguous surrounding structures and invade the foramen. Exiting inferiorly through the jugular foramen, the vagus nerve travels between the internal jugular vein and internal carotid artery within the carotid sheath, giving off three major branches containing special visceral efferent fibers. The jugular foramen jf is a canal that makes communication between the posterior cranial fossa and the upper neck for one third of the cranial nerves and for.
N2 the complexity of the jugular foramen can be appreciated once its deep location, variability in shape and size, and neurovascular contents are recognized. Jugular foramen article about jugular foramen by the. The left foramen large arrow is larger than the right foramen small arrow. The purpose of this study was to evaluate a series of patients with jugular foramen tumors who were surgically treated in the past 16 years, and to analyze the surgical technique, complications, and outcomes. No data were also available regarding the sexual differences of jugular foramen. Paragangliomas in the skull base are ubiquitous in their distribution and arise from paraganglia or glomus cells situated at the following sites. Morphometric evaluation of the jugular foramen at base of the skull in north indian population addeddate 20190110 07. The purpose of this study was to assess how well the anatomy of the jugular foramen jf could be displayed by 3t mr imaging by using a 3d contrastenhanced fast imaging employing steadystate acquisition sequence cefiesta and a 3d contrastenhanced mr angiographic sequence cemra. Discussion the size and shape of the jugular foramen is obviously related to the size of the internal jugular vein and the presence or absence of a prominent superior bulb. Conclusion the anatomy surrounding the jugular foramen is exceedingly. These tumors have characteristic radiological features. To access free multiple choice questions on this topic, click here. Jugular foramen tumors arise either primary within the foramen glomus jugulare tumors and schwannomas of the 9th11th cranial nervesor from neighboring structures and involve the foramen.
The jugular fossa is a depression situated on the inferior surface of petrous temporal bone posterior to the inferior opening of carotid canal. The spinal cord, an extension of the medulla oblongata, passes through the foramen magnum as it exits the cranial cavity. Jugular foramen medical definition merriamwebster medical. Tumors of the jugular foramen pdf tumors of the jugular foramen pdf free download, tumors of the jugular foramen pdf, tumors of the jugular foramen ebook content this book covers all aspects of the diagnosis and treatment of tumors of the jugular foramen cranial base lesions that present particular diagnostic and management difficulties. Skeletonization of the posterior bony canal and facial nerve to the stylomastoid foramen.
Evolution of the intracranial approaches to jugular foramen. Imaging of jugular foramen antibodies or varicella zoster dna in the cerebrospinal fluid. Apical foramen, the opening at the tip of the root of a tooth. Paragangliomas glomus jugular tumors the most common tumor to develop in the jf is a paraganglioma. A variety of lesions may occur in the jugular foramen. The jugular foramen courses anteriorly, laterally, and inferiorly as it insinuates itself between the petrous temporal bone and the occipital bone. It contains the lower cranial nerves and major vascular structures. The right jugular foramen large arrow is larger than the left small arrow, due to the asymmetry of the intracranial venous drainage. There is a separate paragraph on lesions of the jugular foramen in children. A thorough understanding of the anatomy of this region is. The two jugular foramina exist at the base of the skull lateral to the foramen. The entire sigmoid, jugular bulb, and jugular vein should be completely decompressed. Springer nature is making sarscov2 and covid19 research free. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Jeanpierre barral, alain croibier, in manual therapy for the cranial nerves, 2009. Anteriorly, the jf is limited by the carotid ridge, which is a transverse crest that separates the jf from the entry point of the carotid canal. Jugular foramen definition of jugular foramen by medical. Jugular foramen definition of jugular foramen by the. We present a single surgeons perspective in managing these difficult tumors. Cranial nerve foramina are integral exits from the confines of the skull.
The jugular foramen is usually described as being divided into two parts by a fibrous or bony septum, called the jugular spine, into. Surgical exposure of the jf is usually justified by the removal of benign tumors. From a lateral view, the jf is protected by multiple. Jugular foramen synonyms, jugular foramen antonyms. Apart from the transmission of the medulla oblongata and.
Makes a plexus with glossopharyngeal vagus leaving the right jugular foramen po. The jugular foramen jf is a canal that makes communication between the posterior cranial fossa and the upper neck for one third of the cranial nerves and for the main venous channel of the brain. Twentyfive patients free of skull base lesions were imaged. Anatomy, head and neck, jugular foramen statpearls ncbi.
The authors conducted an autopsy study of 50 jugular foramina and surrounding tissue, using the dissecting microscope. Tumors of the jugular foramen pdf download medical books. In twothirds of cases, the right jugular foramen is larger than the left jugular foramen 2. Through other openings, the jugular foramina, pass the large blood channels called the sigmoid sinuses and also the 9th glossopharyngeal, 10th vagus, and 11th spinal. Cranial nerve internal jugular vein dura mater glomus tumor occipital bone. Foramen ovale heart, an opening between the venous and arterial sides of the fetal heart foramen transversarium, one of a pair of openings in each cervical vertebra, in which the vertebral artery travels. Far lateral approach and jugular foramen part 1 of 2. The jf may be partially or completely divided into three compartments by small spicules of bone.
Jugular foramen tumors arise either primary within the foramenglomus jugulare tumors and schwannomas of the 9th11th cranial nervesor from neighboring structures and involve the foramen. Pdf introduction multiple surgical approaches and combinations thereof have been described to gain access to the jugular foramen. A variety of lesions may occur in the jugular foramen, arising from the structures normally found within the jugular foramen or from contiguous structures. Paragangliomas were themost frequent lesions, followed by schwannomas and meningiomas. Pdf anatomy involved in the jugular foramen approach for. The purpose of this study was to assess how well the anatomy of the jugular foramen jf could be displayed by 3t mr imaging by using a 3d contrastenhanced fast. Surgical anatomy of the jugular foramen springerlink. In addition to a number of anatomic variants and imaging artifacts, it may be affected by a variety of primary and secondary lesions. The branchiomotor supply to pharynx and larynx is derived. Complete morphometric analysis of jugular foramen and its. This file is licensed under the creative commons attributionshare alike 2. Through other openings, the jugular foramina, pass the large blood channels called the sigmoid sinuses and also the 9th glossopharyngeal, 10th vagus, and 11th spinal accessory cranial nerves as they leave the cranial cavity. Jugular foramen, albeit complex, is essentially a bony conduit transmitting nerves and vessels from the posterior cranial fossa to the nasopharyngeal carotid space. The emphasis is on the various tumours that can be encountered.
From a lateral view, the jf is protected by multiple layers of muscles and by the outer surface of the petrous bone. Greater sciatic foramen, a major foramen of the pelvis. Jugular foramen syndrome article about jugular foramen. The jugular foramen is a large opening between the jugular process of the occiput and the petrosal portion of the temporal bone, set at the posterior end of the petrooccipital suture. The jugular foramen varies greatly in size but averages 1. The pharyngeal nerves form a plexus with glossopharyngeal and sympathetic fibres. Giant jugular foramen tumor nonpseudomonal malignant otitis externa and jugular foramen syndrome secondary to cyclosporininduced hypertrichosis in a diabetic renal transplant patient. Foramen jugulare definition of foramen jugulare by. It is formed in front by the petrous portion of the temporal bone, and behind by the occipital bone. Imaging strategy and detailed anatomy at 3t article pdf available in american journal of neuroradiology 301. Part ii, presented here, focuses on the foramina of the posterior cranial fossa and discusses each foramen. Jugular foramen syndrome has several etiologies, including trauma, tumor growth, and infection. Imaging of jugular foramen jugular foramen, albeit complex, is essentially a bony conduit transmitting nerves and vessels from the posterior cranial fossa to the nasopharyngeal carotid space. Just anteromedial to this ridge a small hole is identi.
917 1521 475 503 1614 220 1031 880 1541 1257 1332 1609 1608 603 129 369 637 176 962 473 442 80 1047 1128 1439 1286 1417 865 242 558 917 862 1371 527