scholarly journals Morphometric study of Jugular Foramen at base of the skull in South Gujarat region

2014 ◽  
Vol 13 (9) ◽  
pp. 58-61 ◽  
Author(s):  
Roma Patel ◽  
◽  
C.D Mehta
2013 ◽  
Vol 02 (02) ◽  
pp. 071-074 ◽  
Author(s):  
P Vijisha ◽  
Arun Kumar Bilodi ◽  

Abstract Background and aims: Jugular foramen is an important foramen transmiting a number of structures at the base of the skull. Various tumours and infiltrating inflammatory processes are associated with this foramen. Hence, present study was taken up to study morphometry of the jugular foramen in human skulls in Tamil Nadu region. Material and methods: A total number of 60 jugular foramina were examined from 30 adult dry skulls of unknown age and sex. Measurements were taken using Vernier Calipers. Results were analysed statistically. Results: The length, width and area of jugular foramen of right side were compared with left side. Predominance of one of the two foramina was found in 86.6% (26): Predominance on right was 76.6% (23) and on left was 10% (3).The presence of partial septum was found around 73.3% on right side and 80% on left side respectively. Dome was present only 26.6% on right side and 3.33% on left side but in 70% of skulls it was present bilaterally. Conclusion: The morphometric variations in the skulls of Tamil Nadu region are probably ethnic and racial. The metric information is of use to the neurosurgeons dealing with the region.


2021 ◽  
pp. 125-156
Author(s):  
Daniel R. van Gijn ◽  
Jonathan Dunne

There are 12 pairs of cranial nerves that are individually named and numbered using Roman numerals. Only some cranial nerves are mixed in function, i.e. they carry both sensory and motor fibres; others are purely sensory or motor and some may also carry pre- or post-ganglionic parasympathetic fibres. They pass through foramina in the base of the skull and are the olfactory (through cribriform plate to the nasal cavity), optic (through the optic foramen to the eye), oculomotor (through the cavernous sinus and superior orbital fissure to supply the eye), trochlear (as per oculomotor), trigeminal (three main branches that pass through the superior orbital fissure, foramen rotundum and foramen ovale, respectively), abducens (as per oculomotor), facial (through stylomastoid foramen to supply muscles of facial expression), vestibulocochlear (through the internal acoustic canal to control balance and hearing), glossopharyngeal, vagus, accessory (all pass through the jugular foramen) and hypoglossal (through the hypoglossal canal to control movements of the tongue) nerves.


2015 ◽  
Vol 2 (10) ◽  
pp. 164-166 ◽  
Author(s):  
Shruthi B.N ◽  
◽  
Pavan P. Havaldar ◽  
Shaik Hussain Saheb ◽  
Henjarappa K S ◽  
...  

2019 ◽  
Vol 08 (04) ◽  
pp. 160-164
Author(s):  
Govindarajan Amudha ◽  
Chandrasekaran Nandhini Aishwarya ◽  
Deborah Joy Hepzibah ◽  
Vaujapuri Anandhavadivel Kesavan ◽  
Anaimalai Kandavadivelu Manicka Vasuki

Abstract Introduction Jugular foramen is one of the most fascinating foramina of the human skull. It is a complex, irregular bony canal located between the occipital bone and petrous part of the temporal bone. Many important structures, like 9th, 10th, 11th cranial nerves, meningeal branch of occipital and ascending pharyngeal arteries, internal jugular vein, and inferior petrosal sinus, are passing through it. The jugular fossa has a septum and a dome. The septum divides the foramen into two compartments: anteromedial compartment (pars nervosa) and posterolateral compartment (pars vascularis). The dome contains superior bulb of internal jugular vein. The architecture of the foramen varies in size, shape, and laterality besides differences related to sex and race. The morphometric measurements of jugular foramen are very important for neurosurgeries and head and neck surgeries. Objectives The aim of the present study is to study the morphology of jugular foramen along with its dimensions, compartments, presence of partial or complete septa and dome. Materials and Methods A total number of 60 jugular foramina were examined from 30 adult dry human skulls of unknown age and sex from the Department of Anatomy, PSG Institute of Medical Sciences and Research, Coimbatore. Measurements were taken using Digital Vernier calipers. Results were analyzed statistically. Results The length, width, and surface area of jugular foramen of right side were measured and compared with the left side. Length and width of the jugular foramen was significantly higher on the right side. The presence of partial septum was found in 27 skulls (90%) on the right side and 29 skulls (99.7%) on the left side, respectively. Dome was present in 100% of the jugular foramina on the right side and 90% of the jugular foramina on the left side. Separate opening for inferior petrosal sinus was found in eight skulls (27%) on the right side and four skulls (13%) on the left side. Conclusion This study provides a clear understanding of anatomy of jugular foramen and supports the reported morphometric variations. The morphometric variations of jugular foramen in the parameters of the skull are probably due to ethnic and racial factors. Knowledge of these variations is important for neurosurgeons and radiologists who deal with space occupying lesions of the structures surrounding jugular foramen. This study may be helpful for ENT surgeons while performing middle ear surgeries.


2018 ◽  
Vol 67 ◽  
pp. S47-S48
Author(s):  
Jain Lovely ◽  
B.K. Guha ◽  
R.S. Kushawaha ◽  
K.K. Gour

2016 ◽  
Vol 4 (2.2) ◽  
pp. 2345-2348 ◽  
Author(s):  
Zuberi Hussain Riyaz ◽  
◽  
Azhar Ahmed Siddiqui ◽  

1984 ◽  
Vol 60 (5) ◽  
pp. 1045-1053 ◽  
Author(s):  
Andrew H. Kaye ◽  
Joseph F. Hahn ◽  
Sam E. Kinney ◽  
Russell W. Hardy ◽  
Janet W. Bay

✓ Thirteen patients with schwannomas of the jugular foramen were operated on at the Cleveland Clinic between 1974 and 1983. The authors' experience in managing these rare tumors is presented. Three major growth patterns of jugular foramen schwannoma were seen, and it is postulated that the position of the tumor depends on its point of origin from the nerves as they pass through the pars nervosa of the jugular foramen. The more distal lesions will expand inferiorly out of the base of the skull, and the more proximal lesions will enlarge into the posterior fossa. Tumors in the mid region will tend to expand primarily into bone. The schwannoma was primarily intracranial in six patients. In five patients the tumor expanded the bone at the base of the skull, with only a small intracranial component, and in two patients the tumor was primarily extracranial, with a small extension into the bone or posterior fossa. The presentation of the patients varied according to the tumor growth pattern. Deafness, vertigo, and ataxia were present in all patients with a major intracranial component, and in most of these there were only minimal deficits of the jugular foramen nerves. By contrast, lower cranial nerve involvement, including hoarseness and weakness of the trapezius and sternocleidomastoid muscles, occurred in patients in whom the tumor was primarily within the bone or extracranial. Three of the five patients with the major component of the schwannoma within the bone also had deafness. Symptomatic history was longest in those with tumor mainly involving the bone at the base of the skull, and shortest in patients with entirely extracranial tumor. Surgical resection was accomplished with a joint neurosurgical-otological approach, usually combining a posterior fossa exploration with either a translabyrinthine transcochlear or infralabyrinthine procedure. The exact nature of the operation depended upon the presence of intracranial tumor and on the extent of bone or extracranial involvement. Total excision was performed in all cases. There was no operative mortality, and surgery resulted in loss of function of the ninth, 10th, and 11th cranial nerves in most patients. The major postoperative morbidity consisted of swallowing difficulties and sputum aspiration.


1982 ◽  
Vol 56 (6) ◽  
pp. 850-853 ◽  
Author(s):  
Ulf Havelius ◽  
Bengt Hindfelt ◽  
Jan Brismar ◽  
Sten Cronqvist

✓ A patient suffered the acute onset of unilateral pareses of the ninth through 12th cranial nerves (Collet-Sicard syndrome). Ipsilateral retrograde jugular phlebography and carotid angiography revealed irregular aneurysmal changes of the internal carotid artery at the base of the skull, causing compression of the internal jugular vein below the jugular foramen. This finding is discussed in relation to the clinical symptoms and signs, and possible mechanisms are examined. Family history as well as the clinical and roentgenological findings were compatible with a diagnosis of fibromuscular dysplasia.


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