ANATOMIE DES PAIRES CRANIENNES PDF

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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Tumor demonstrated by ventriculography. The jugular foramen foramen lacerum posterius actually is a canal that courses anteriorly, inferiorly and laterally from an endocranial to an exocranial opening Fig. Cerebellum and brain stem in situ and tympanic area stippled on left. Routine, Tomography, Special view for J.

Alembic shape of exocranial a and bird-like shape of endocranial opening b. 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. Solid black wedge in b represents widening of petro-occipital fissure.

Jugular foramen syndrome and allied syndromes. Enlargement without evidence of erosion of the contours is of certain pathological significance only when it involves predominantly the pars nervosa.

Both internal acoustic meatuses enlarged. In this last paper, a probable neuroma of nerve XI was also reported.

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 originate in the jugular foramen.

This asymmetry generally has been attributed to differences in the size of the lateral sinuses. Method of measurement of size of jugular foramen, a Width of pars nervosa; b width paiges pars vascularis; and c anagomie length of jugular foramen.

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The Jugular Foramen

Pathology anatomle the jugular foramen is indicated radiographically by enlargement and erosion of its margins. 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 All 4 of these additional neuromas presented radiographic enlargement of the jugular foramen. Angle tumor by pneumoenceph alography Small X Bernasconi et al.

Normal internal acoustic meatuses A and asymmetrical jugular foramina B in patient with left acoustic neuroma. Chamberlain in the early thirties.

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 pairds of the normal foramen Table 1. Note preservation of jugular spine and normal size of pars nervosa in two tomograms at different levels.

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Rerilla 58 [Case 3]. 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. Miscellaneous Pathology Other lesions derived from structures contiguous to the jugular foramen have been reported to involve the foramen. Though not reported previously, pathologic enlargement of the jugular foramen may occur anatkmie vascular malformations. In 1 of our cases in which a glomus tumor was highly suspected by the referring otolaryngologist, sclerosis of the mastoid was present.

Relation of jugular foramina to epileptic seizures and hydrocephalus. Internal crxniennes meatus eroded.

Revilla 58 [Case 1]. Enlargement of pars vascularis of both jugular foramina in case of aneurysm of vein of Galen in year-old boy. Frugoni, University of Padua, Italy.

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ccraniennes Aubaniac 3 Exocranial. Neuromas of nerves IX, X and XI are recognized by a smooth, well-outlined enlargement of the jugular foramen involving predominantly the pars nervosa.

Exocranial 80 42 7 Endocranial 70 39 26 5.

Structures within and passing through jugular foramen. Even anayomie special views Fig. A competent preoperative diagnosis in such cases requires a detailed roentgenographic investigation with special views. 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.

The radiographic projections for the demonstration of the jugular foramen are reviewed. The previously reported asymmetry of the two foramina, with the right side usually predominating Craneinnes.

12 paires de nerfs crâniens Flashcards Preview

Angle tumor by pneumoenceph alography. We found pairs internal acoustic meatuses and asymmetrical jugular foramina, the left being considerably larger than the right Fig.

The symmetrical bilateral tomographic projections are preferred. Smooth, well-outlined enlargement of jugular foramen in case of neuroma of nerve X. Patterns produced by a tumors of glomus jugulare, b intracranial neuromas of nerves IX, X and XI and c vascular malformations.

Irregular, ill-defined erosion of jugular foramen in 2 tumors of right glomus jugulare. Discussion The clinical findings of several different lesions in the region of the jugular foramen may be indistinguishable. Cerebral angiography may aid further in this differential diagnosis. The clinical findings of several different lesions in the region of the jugular foramen may be indistinguishable. Angle tumor by pneumoencephalography XI.