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1. 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 · Radiographic features. 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.

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   • Sinonasal Polyposis

     attenuation of the ethmoid sinus walls and nasal septum....

2. appliedradiology.com › articles › the-opacified-paranasal-sinus-approach-andThe opacified paranasal sinus: Approach and differential

   appliedradiology.com › articles › the-opacified-paranasal-sinus-approach-and

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   3 sie 2015 · However, there is a differential for an opacified paranasal sinus (Table 1). This article will present the typical appearances of these entities and demonstrate the benefit of a systematic approach in the evaluation of an opacified sinus (Table 2).

3. radiopaedia.org › articles › acute-sinusitisAcute sinusitis | Radiology Reference Article - Radiopaedia.org

   radiopaedia.org › articles › acute-sinusitis

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   26 lip 2024 · Acute sinusitis (rare plural: sinusitides) is an acute inflammation of the paranasal sinus mucosa that lasts less than four weeks and can occur in any of the paranasal sinuses. If the nasal cavity mucosa is also involved (i.e. rhinitis ) then the term rhinosinusitis may be used.

4. link.springer.com › chapter › 10Imaging of Sinonasal Disease (Infection, Tumors) | SpringerLink

   link.springer.com › chapter › 10

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   15 godz. temu · Mycetoma. (a) Axial bone algorithm CT shows opacification of the right maxillary sinus with calcifications (black arrow).(b) Axial soft tissue algorithm CT demonstrates calcifications and hyperattenuating components opacifying the right maxillary sinus (white arrow).(c) Axial T2W MRI demonstrates mucosal thickening of the right maxillary sinus (white curved arrow) and hypointense regions ...

5. www.ajronline.org › doi › 10Imaging of Chronic and Exotic Sinonasal Disease: Review | AJR

   www.ajronline.org › doi › 10

   1 gru 2007 · Unenhanced coronal CT scan shows extensive chronic thickening and sclerosis of maxillary sinus walls (arrows) and mucosal thickening causing near-complete opacification of sinuses. Intrasinus anatomy is distorted from prior bilateral antrostomies and ethmoidectomies.

6. www.clinicalradiologyonline.net › article › S0009-9260(19)30372-1Imaging of adult nasal obstruction - Clinical Radiology

   www.clinicalradiologyonline.net › article › S0009-9260(19)30372-1

   31 maj 2019 · The principal focus of CT is determining the distribution and severity of mucosal disease within the paranasal sinuses and describing relevant anatomical variants that contribute to narrowing of the sinus drainage channels or have implications for endoscopic surgery.

7. emedicine.medscape.com › article › 384649Sinusitis (Rhinosinusitis) Imaging: Practice Essentials,...

   emedicine.medscape.com › article › 384649

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   Possible findings in acute sinusitis include mucosal thickening, air-fluid levels, and complete opacification of the involved sinus. The role of imaging in acute sinusitis is controversial, and...