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.
|Published (Last):||19 April 2005|
|PDF File Size:||13.89 Mb|
|ePub File Size:||13.57 Mb|
|Price:||Free* [*Free Regsitration Required]|
Bone defect in J. Angle tumor by pneumoencephalography XI.
Anaomie 58 [Case 1]. Right lateral sinus and jugular foramen considerably larger than left. These two techniques were reported Davis, D. 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 significant clinical and roentgenographic findings in the 19 cases reported in the world literature are summarized in Table 6.
12 paires de nerfs crâniens Flashcards Preview
Patterns produced by a tumors of glomus jugulare, b intracranial neuromas of nerves IX, X and XI and c vascular malformations. Since this paper was submitted for publication it has come to our attention that two techniques for the demonstration of the ;aires foramina one symmetrical bilateral and one oblique unilateral, both combined with stereoscopy were developed and used by W.
In these cases, the pars vascularis is increased in size with smooth well-outlined margins, while the pars nervosa is of normal shape and dimensions.
Smooth, well-outlined enlargement of jugular foramen in case of neuroma of nerve X. Routine, Special views pairds J. The symmetrical bilateral tomographic projections are preferred.
Asymmetrical jugular foramina as seen endo- above and exocranially below. No analysis of the shapes of the foramina was made except to note the occurrence of a bony septum between the occipital and petrous bones unilaterally in 17 Pathology of the jugular foramen is indicated radiographically by enlargement and erosion of its margins. The clinical findings of several different lesions in the region of the jugular foramen may be indistinguishable. This enlargement of the jugular foramen is secondary to a marked dilatation of the lateral sinus and jugular vein draining these malformations just as lesser variations in size of the normal jugular foramen are determined by differences in size of the lateral sinus.
VII, X 2 gm.
Discussion The clinical findings of several different lesions in the region of the jugular foramen may be indistinguishable. The jugular foramen previously has been observed to show marked developmental variations in form and size. Linser 46 Pars vascularis only.
Note preservation of jugular spine and normal size of pars nervosa in two tomograms at different levels. Dilatation of the internal jugular vein secondary ajatomie vascular malformation is reported for the first time as a cause of enlargement of the pars vascularis of the jugular foramen.
We found normal internal acoustic meatuses and asymmetrical jugular foramina, the left being considerably larger than the right Fig. The jugular foramen foramen lacerum posterius actually is a canal that courses anteriorly, inferiorly and laterally from an endocranial to an exocranial eds Fig. Frugoni, University of Padua, Italy. Though neither jugular foramen is visualized optimally by this method, a comparison of both foramina on the same film is made possible.
Rerilla 58 [Case 3]. 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.
Revilla 58 [Case 2]. Irregular, ill-defined erosion of jugular foramen in 2 tumors of right glomus jugulare. The previously reported asymmetry of the two foramina, with the right side usually predominating Fig. Anatomical Considerations Apires jugular foramen foramen lacerum posterius actually is a canal that courses anteriorly, inferiorly and laterally from an endocranial to an exocranial opening Fig.
In our experience, symmetrical bilateral projections combined with tomography represent a useful compromise. Cerebral angiography may aid further in this differential diagnosis. Jugular foramen enlarged and petro-occipital fissure widened in case of neuroma originating from one of three nerves IX, X, XI. The pattern of enlargement and erosion of the foramen serves to distinguish those lesions related to structures within the jugular foramen—tumors of the glomus jugulare, neuromas of nerves IX, X and XI, dilatations of the jugular vein secondary to vascular malformation Fig.
In each of these cases, the involved foramen is enlarged with sharply defined, slightly thickened margins and erosion of the jugular spine Fig.
File:Anatomie du SN – Wikimedia Commons
A diagnosis of neuroma in the left jugular foramen was made by one of us GDCbut at operation an acoustic neuroma in the usual location was found. Angle tumor by pneumoenceph alography Small X Bernasconi et al. It is of note that the nerve of origin frequently is difficult to determine at operation. Angle tumor by pneumoenceph alography. Di Chiro et at. Method of measurement of size of jugular foramen, a Ees of pars nervosa; b width of pars vascularis; and c total length of jugular foramen.
Solid black wedge in b represents widening of petro-occipital fissure. Internal acoustic meatus eroded. Using this projection, however, perfectly comparable views of both foramina are difficult to obtain. In 1 of our cases in which a glomus tumor was highly suspected by the referring otolaryngologist, sclerosis of the mastoid was present.
Though not reported previously, pathologic enlargement of the jugular foramen may occur in dez malformations.
All 4 of these additional neuromas presented radiographic enlargement of the jugular foramen. Aubaniac 3 Exocranial. We have observed this finding in 3 cases—an aneurysm of the vein of Galen Fig.