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1. radiopaedia.org › articles › nasal-meatusNasal meatus | Radiology Reference Article - Radiopaedia.org

   radiopaedia.org › articles › nasal-meatus

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   3 maj 2023 · There are three main nasal meatuses: superior meatus. middle meatus. inferior meatus. A fourth supreme meatus may exist if the supreme nasal concha is present. The nasal meatuses receive drainage of the paranasal sinuses and nasolacrimal duct.

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   • Supreme Meatus

     The supreme meatus is an air passage of the lateral nasal...

   • Nasal Conchae

     The nasal conchae or turbinates are long, narrow curled...

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   • Middle Meatus

     Middle nasal meatus The middle meatus is an air passage of...

   • Sinonasal polyposis

     grade 1: single polyp confined to the middle meatus. grade...

   • Pattern

     Babbel et al. described five patterns of sinonasal...

2. radiopaedia.org › articles › sinonasal-polyposisSinonasal polyposis | Radiology Reference Article -...

   radiopaedia.org › articles › sinonasal-polyposis

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   10 lis 2022 · grade 1: single polyp confined to the middle meatus. grade 2: multiple polyps in the middle meatus. grade 3: extending beyond the middle meatus. grade 4: nasal cavity obstruction. Radiographic features CT. extensive mucosal polyps occupying and obliterating the nasal cavity and the paranasal sinuses

3. radiopaedia.org › articles › patterns-of-sinonasal-obstructionPatterns of sinonasal obstruction | Radiology Reference Article...

   radiopaedia.org › articles › patterns-of-sinonasal-obstruction

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   2 wrz 2024 · Babbel et al. described five patterns of sinonasal obstruction 1, which are readily apparent on CT and widely used: Infundibular pattern. opacification of maxillary sinus. obstruction of the ipsilateral maxillary ostium and infundibulum. causes: mucosal swelling, sinonasal polyp, Haller cells. may progress to silent sinus syndrome. Ostiomeatal ...

4. www.ncbi.nlm.nih.gov › pmc › articlesNasal cavities and the nasal septum: Anatomical variants and...

   www.ncbi.nlm.nih.gov › pmc › articles

   20 mar 2020 · The right and left nasal cavities are divided by the nasal septum (Figure 2), which is a mixed osseous and cartilaginous structure made up of five components: the quadrangular cartilage, the perpendicular plate of the ethmoid bone, the vomer, the nasal crest of maxillary bones and palatine bones.

5. www.ajronline.org › doi › fullMultiplanar Sinus CT: A Systematic Approach to Imaging Before ......

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   23 lis 2012 · Midline sagittal CT image shows nasal septum, which is composed of perpendicular plate (PP) of cribriform bone, vomer (V), and septal cartilage (SC). Fr = frontal sinus, Sph = sphenoidal sinus.

6. www.ajronline.org › doi › fullA Comprehensive Review of Cross-Sectional Imaging of the ... -...

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   4 wrz 2019 · A, Coronal oblique contrast-enhanced maximum-intensity-projection CT image shows large nasal septal defect, diffuse thick soft tissue along lateral aspects of nasal cavity, obstructing inferior meatus, eroding medial walls of bony nasolacrimal ducts, and infiltrating aforementioned ducts (arrowheads) with secondary postobstructive dilatation of ...

7. emedicine.medscape.com › article › 875126-overviewNasal Cavity Anatomy, Physiology, and Anomalies on CT Scan -...

   emedicine.medscape.com › article › 875126-overview

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   4 sty 2024 · CT scan, nasal cavity. This reformatted image of a normal sagittal reconstruction of the ostiomeatal complex shows the curved edge of the semilunar hiatus with the inferior mucosal edge...