ANATOMIE DES PAIRES CRANIENNES PDF

Jugular foramen enlarged and petro-occipital fissure widened in case of neuroma originating from one of three nerves IX, X, XI. The Jugular Foramen in: Journal of Neurosurgery Volume 21 Issue 6 Year The significant clinical and roentgenographic findings in the 19 cases reported in the world literature are summarized in Table 6. Jugular foramen syndrome and allied syndromes. 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. In each of these cases, the involved foramen is enlarged with sharply defined, slightly thickened ceaniennes and erosion of the jugular spine Fig.

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Jugular foramen enlarged and petro-occipital fissure widened in case of neuroma originating from one of three nerves IX, X, XI. The Jugular Foramen in: Journal of Neurosurgery Volume 21 Issue 6 Year The significant clinical and roentgenographic findings in the 19 cases reported in the world literature are summarized in Table 6.

Jugular foramen syndrome and allied syndromes. 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.

In each of these cases, the involved foramen is enlarged with sharply defined, slightly thickened ceaniennes and erosion of the jugular spine Fig. Routine, Special views for J. Exocranial 80 42 7 Endocranial 70 39 26 5. Chamberlain in the early thirties. A unilateral oblique projection pairew tomography was suggested in Fischgold, H.

Signs of increased intracranial pressure. Angle tumor by pneumoenceph alography Small X Bernasconi et al. Solid black wedge in b represents widening of petro-occipital fissure. Radiographic correlation of asymmetrical lateral sinuses in late venous phase of carotid angiography A and jugular foramina in submentovertex view B.

In this last paper, a probable neuroma of nerve XI was also reported. We have observed this finding in 3 cases—an aneurysm of the vein of Galen Fig. 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. Linser 46 Pars vascularis only.

Method of measurement of size of jugular foramen, a Width of pars nervosa; b width of pars vascularis; and c total length of jugular foramen. Cerebral angiography may aid further in this differential diagnosis. Di Chiro et al.

Patterns produced by a tumors of glomus jugulare, b intracranial neuromas of nerves IX, X and XI and c vascular malformations. On the anatoie of our anatomic studies and giving necessary consideration to the roentgenographic magnification, generalized enlargement of the jugular foramen without erosion of the contours is probably of pathologic significance only if the sum of its length, width of the pars vascularis, and width of the pars nervosa is 20 mm.

Angle tumor by pneumoencephalography. The clinical findings of several different lesions in the region of the jugular foramen may be indistinguishable. Smooth, well-outlined enlargement of jugular foramen in case of neuroma of nerve X. Dilatation of the internal jugular vein secondary to vascular malformation is reported for the first time piares a cause of enlargement of the pars vascularis of the jugular foramen.

In our experience, symmetrical bilateral projections combined with tomography represent a useful compromise. Interpretation of the roentgenograms requires an awareness of the normal variations in the size, shape and symmetry of the jugular foramina.

We found normal internal caniennes meatuses and asymmetrical jugular foramina, the left being considerably larger than the right Fig. Discussion The clinical findings of several different lesions in the region of the jugular foramen may be indistinguishable. Even with special views Fig. A large number of special projections have been suggested, especially in the French and Italian literature, for the detailed study of the jugular foramen.

Structures neighboring jugular foramen. Vascular Pathology Though not reported previously, pathologic enlargement of dds jugular foramen may occur in vascular malformations. 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. Revilla 58 [Case 2]. 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.

Aubaniac 3 Anatomiw. 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. File:Anatomie du SN 1. In the presence of a syndrome of the cerebellopontine angle, the radiographic evidence of normal internal acoustic meatuses and pathologically enlarged and eroded jugular foramen makes the diagnosis of acoustic neuroma unlikely while suggesting one of the lesions that res in the jugular foramen.

VII, X 2 gm. Right lateral sinus and jugular foramen considerably larger than left. A competent preoperative diagnosis in such cases requires a detailed roentgenographic investigation with special views. In 1 of our cases in which a glomus tumor was highly suspected by the referring otolaryngologist, sclerosis of the mastoid was present. Structures within and passing through jugular foramen. Internal acoustic meatus eroded.

The Jugular Foramen All 4 of these additional neuromas presented radiographic enlargement of the jugular foramen. From this error crabiennes roentgenographic interpretation, an interest developed in the normal anatomy and pathology of the jugular foramen. Tumor demonstrated by ventriculography. Addendum Since this paper was submitted for publication it has come to our attention that anatkmie 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.

Psires these observations, sclerosis of the mastoids unassociated with bony erosion is of doubtful significance in view of its high incidence in the general population. IX Revilla 58 [Case 1] 54 F? Angle tumor by pneumoenceph alography. Cerebellum and brain stem in situ and tympanic area stippled on left. Most Related.

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Gogrel Irregular, ill-defined erosion of jugular foramen in 2 tumors of right glomus jugulare. No analysis of the shapes of the foramina was made except to note the occurrence of a pairfs septum between the occipital and petrous bones unilaterally in 17 Method of measurement of size of jugular foramen, a Width of pars nervosa; b width of pars vascularis; and c total length of jugular foramen. Of these observations, sclerosis of the mastoids unassociated with bony erosion is of doubtful cranienness in view of its high incidence in the general population. 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. Note preservation of jugular spine and normal size of pars nervosa in two tomograms at different levels. Structures within and passing through jugular foramen.

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