This Pin was discovered by Christy Reed. Discover (and save!) your own Pins on Pinterest. 12 paires de nerfs crâniens Flashcards Preview. UE 5 – Anatomie > 12 paires de nerfs crâniens > Flashcards. Study These Flashcards. L’étude anatomique de la vascularisation de la IIIe paire démontre l’existence de la IIIe paire, associée ou non à l’atteinte d’autres nerfs crâniens, suggère un.
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On the other hand, detailed exocranial and endocranial measurements of the foramen were obtained and in accord with previous workers, we noted a considerable range in the dimensions of the normal foramen Table 1. Though not reported previously, pathologic enlargement of the jugular foramen may occur in vascular malformations.
Complete bridging of jugular foramen. It is of note that the nerve of origin frequently is difficult to determine at operation. The jugular foramen previously has been observed to show marked developmental variations in form and size. Using the sum of the width of the pars nervosa, the width of the pars vascularis, and the total length of the foramen as an index of over-all size of the foramen Fig. Since this paper was submitted for publication it has come to our attention that two techniques for the demonstration of the jugular foramina one symmetrical bilateral and one oblique unilateral, both combined with stereoscopy were developed and used by W.
Routine, Special views for J. Discussion The clinical findings of several different lesions in the region of the jugular foramen may be indistinguishable. Patterns produced by a ppaires of glomus jugulare, b intracranial neuromas of nerves IX, X and XI and c vascular malformations.
Frugoni, University of Padua, Italy. Solid black wedge in b represents widening of petro-occipital fissure.
Neurosciences/La moelle épinière
Other lesions derived from structures contiguous to the jugular foramen have been crahiennes to involve the foramen. The subsequent surgical exploration failed to demonstrate a glomus tumor.
R ecently we studied radiographically a patient presenting a syndrome of the cerebellopontine angle with a striking change in the pitch of the voice. We have observed this finding in 3 cases—an aneurysm of the vein of Galen Fig. Miscellaneous Pathology Other lesions derived from structures contiguous to the jugular foramen have been reported to involve the foramen.
A unilateral oblique projection with tomography was suggested in Fischgold, H. Vascular Pathology Though not reported previously, pathologic enlargement of the jugular foramen may occur in vascular malformations. Both internal acoustic meatuses enlarged. Neuromas of nerves IX, X and XI are recognized by a smooth, well-outlined enlargement of the jugular foramen involving predominantly the pars nervosa.
The clinical findings of several different lesions in the region of the jugular foramen may be indistinguishable.
Aubaniac 3 Exocranial. Right lateral sinus and jugular foramen considerably larger than left. Jugular foramen enlarged and petro-occipital fissure widened in case of neuroma originating from one of three nerves IX, X, XI. In 1 of our cases in which cramiennes glomus tumor was highly suspected by the referring otolaryngologist, sclerosis of the mastoid was present.
Neurosciences/La moelle épinière — Wikilivres
The anatomical features of the jugular foramen are discussed with particular regard to its canal-like form and the normal variations in size, shape and symmetry of its endo- and exocranial openings. Bilateral enlargement of pars vascularis secondary to arteriovenous malformation of both cerebral hemispheres.
Structures within and passing through jugular foramen. Alembic shape of exocranial a and bird-like shape of endocranial opening b. Enlargement of the jugular foramen, on the other hand, is a very important finding and is observed in a high percentage of cases of tumors of the glomus jugulare when special projections are used Table 5.
The previously reported asymmetry of the two foramina, with the right side usually predominating Fig. Angle tumor by pneumoencephalography. Routine, Tomography, Special view for J. Though neither jugular foramen is visualized optimally by this method, a comparison of both foramina on the same film is made possible.
Relation of jugular foramina to epileptic seizures and hydrocephalus. Tumors of the glomus jugulare produce a characteristic irregular erosion of the margins of the foramen with decalcification of the surrounding bone Fig. Angle tumor by pneumoenceph alography. IX Revilla 58 [Case 1] 54 F?
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Bone defect in J. These may be classified broadly as oblique unilateral and symmetrical bilateral, both of which may be combined with tomography Table 4.
From this error in roentgenographic interpretation, an interest developed in the normal anatomy and pathology of the jugular foramen. VII, X 2 gm. Ds Considerations The jugular foramen foramen lacerum posterius actually is a canal that cranidnnes anteriorly, inferiorly and laterally from an endocranial to an exocranial opening Fig.
Neurology, We found normal internal acoustic meatuses and asymmetrical jugular foramina, the left being considerably larger than the right Fig. These two techniques were reported Davis, D.
No analysis of the shapes of the foramina was made except to note the occurrence of a bony septum ceaniennes the occipital and petrous bones unilaterally in 17 Addendum Since this paper was submitted for publication it has come to our attention that two techniques for the demonstration of the jugular foramina one symmetrical bilateral and one oblique unilateral, both combined with stereoscopy were developed and used by W.