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TUMEURS DE LA FOSSE CEREBRALE POSTERIEURE - Toubkal

TUMEURS DE LA FOSSE CEREBRALE POSTERIEURE - Toubkal

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SOMMAIRE :<br />

LISTE <strong>DE</strong>S ABREVIATIONS ........................................................................ 5<br />

INTRODUCTION .......................................................................................... 6<br />

RAPPELS .......................................................................................................... 8<br />

I. RAPPEL EMBRYOLOGIQUE ......................................................................... 9<br />

I-1. GENERALITES ..................................................................................... 9<br />

I-2. <strong>DE</strong>VELOPPEMENT DU METENCEPHALE ..................................................... 10<br />

I-2-1. <strong>DE</strong>VELOPPEMENT <strong>DE</strong> <strong>LA</strong> PROTUBERANCE ANNU<strong>LA</strong>IRE .............................. 10<br />

I-2-2. <strong>DE</strong>VELOPPEMENT DU CERVELET ......................................................... 11<br />

I-3. <strong>DE</strong>VELOPPEMENT DU BULBE RACHIDIEN .................................................. 12<br />

I-4. <strong>DE</strong>VELOPPEMENT DU 4 EME VENTRICULE .................................................. 12<br />

II. RAPPEL ANATOMIQUE <strong>DE</strong> <strong>LA</strong> <strong>FOSSE</strong> <strong>CEREBRALE</strong> <strong>POSTERIEURE</strong> ................... 15<br />

II-1. GENERALITES ..................................................................................... 15<br />

II-2. CONTENU <strong>DE</strong> <strong>LA</strong> <strong>FOSSE</strong> <strong>CEREBRALE</strong> <strong>POSTERIEURE</strong> ................................... 18<br />

II-2-1. LE TRONC CEREBRAL ...................................................................... 18<br />

II-2-2. LE CERVELET ................................................................................ 21<br />

II-2-3. LE 4 EME VENTRICULE ...................................................................... 24<br />

II-2-4. LES NERFS CRÂNIENS ..................................................................... 27<br />

II-2-5. LES VAISSEAUX ............................................................................. 32<br />

II-2-6. LES FORMATIONS MENINGEES ........................................................... 34<br />

II-3. LES SINUS <strong>DE</strong> <strong>LA</strong> <strong>FOSSE</strong> <strong>CEREBRALE</strong> <strong>POSTERIEURE</strong> ................................... 37<br />

II-4. TOPOGRAPHIE GENERALE <strong>DE</strong> <strong>LA</strong> <strong>FOSSE</strong> <strong>CEREBRALE</strong> <strong>POSTERIEURE</strong> ............... 37<br />

II-5. LES RAPPORTS <strong>DE</strong> <strong>LA</strong> <strong>FOSSE</strong> <strong>CEREBRALE</strong> <strong>POSTERIEURE</strong> ............................. 38<br />

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