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Anatomic Variations in paranasal sinus region and their clinical importance

Anatomic Variations in paranasal sinus region and their clinical importance. Reviewed articles by Jahanbakhsh Hashemi MD Associate prof of radiology (MUMS). Anatomic Variations in paranasal sinus region and their clinical importance.

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Anatomic Variations in paranasal sinus region and their clinical importance

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  1. Anatomic Variations in paranasal sinus region and their clinical importance Reviewed articles by Jahanbakhsh Hashemi MD Associate prof of radiology (MUMS)

  2. Anatomic Variations in paranasal sinus region and their clinical importance

  3. With the advent of functional endoscopic sinus surgery (FESS) and coronal CT imaging, considerable attention has been directed toward paranasal region anatomy. Detailed knowledge of anatomic variations in paranasal sius region is critical for surgeons performing

  4. (FESS) as well as for the radiologist involved in the preoperative work – up. To be in the known anatomical variants with some accompanying pathologies, directly influence the success of diagnostic and therapeutic management of paranasal sinus diseases.

  5. It was suggested that remarkable anatomic variations of paranasal sinus and their pathologic consequences should be well defined in order for improve success of management strategies. To avoid potential complications of sinus surgery. The radiologist must pay close attention to anatomical variations in preoperative evaluation.

  6. Variations were classified as: 1. Bony abnormalities 2. Extentios of sinus air cells

  7. Bony abnormalities A- septum B- ethmoid structures That project into the nasal cavities primary turbinate including superior, middle, and inferior. And secondary turbinate. Including the uncinate process and Ethmoid bulla.

  8. 2- sinus air cell Extentions External Extensions of air cells from the bone of origin, Twenty – seven extensions related to the Four major groups of paranasal sinuses, Five of these were midline and the remainder were unilateral or bilateral. Extentions of sinus air cells

  9. Septal deviation

  10. Septal deviation

  11. Septal deviation

  12. Deformity of the chondrovomeral junction

  13. Septal spur

  14. Paradoxical middle turbinate

  15. Paradoxical middle turbinate

  16. Hypoplasia of the middle turbinate

  17. Ostiomeatal complex

  18. Ostiomeatal complex

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