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Endoscopic Anatomy of the Lateral Nasal Wall, Ostiomeatal Complex Anterior Skull Base

Reda Kamel Professor of Rhinology Cairo University Egypt. Anatomical Basis. Common anatomy [usual]Anatomical variationsBoundaries and limits. . R. Ostiomeatal complex : OMC. Anterior ethmoid middle meatus complexBulla ethmoidalisLamina papyraceaUncinate processFovea ethmoidalisBasal lamella.

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Endoscopic Anatomy of the Lateral Nasal Wall, Ostiomeatal Complex Anterior Skull Base

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    1. Endoscopic Anatomy of the Lateral Nasal Wall, Ostiomeatal Complex & Anterior Skull Base

    2. Reda Kamel Professor of Rhinology Cairo University Egypt

    3. Anatomical Basis Common anatomy [usual] Anatomical variations Boundaries and limits

    4. Ostiomeatal complex : OMC Anterior ethmoid middle meatus complex Bulla ethmoidalis Lamina papyracea Uncinate process Fovea ethmoidalis Basal lamella

    5. Ostiomeatal complex : OMC

    6. Ostiomeatal complex : OMC Bulla ethmoidalis Hiatus semilunaris inferior Infundibulum Frontal recess & Frontal ostium Maxillary ostium

    7. Ostiomeatal complex : OMC Bulla ethmoidalis Hiatus semilunaris superior Lateral sinus Retro-bullar recess Supra-bullar recess

    8. Frontal recess

    9. Landmarks in FESS

    10. Uncinate process

    11. Skull base: anterior ethmoids & AEA Crista galli Septum Cribriform plate Middle turbinate Lateral lamella Fovea ethmoidalis

    12. Skull base: anterior ethmoids

    13. Middle turbinate, basal lamella Part Site Direction Attachment 1st part (anterior) Vertical Skull base 2nd part (middle) Oblique Lamina papyracea 3rd part (posterior) Transverse Perpendicular plate of palatine bone

    14. Middle turbinate, basal lamella

    15. Basal lamella and ethmoids

    16. Sphenoid sinus Optic nerve Carotid artery Sella tursica Maxillary nerve Vidian nerve

    17. II- Anatomical Variations Concha bullosa Paradoxically bent middle turbinate Medially bent uncinate process Large bulla ethmoidalis Haller cell Sphenoethmoidal air cell

    18. III- Boundaries Limits Orbit Lamina papyracea Cranial cavity Fovea ethmoidalis Cribriform plate Sphenoid

    19. Endoscopic Sinonasal Surgery: Conclusions Proper understanding of the anatomy of the Lateral nasal wall, Ostiomeatal complex Anterior skull base is mandatory to achieve Early and precise diagnosis of sinonasal lesions Safe and effective endoscopic sinonasal surgery

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