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2 wrz 2024 · Patterns of sinonasal obstruction vary, and distinguishing between them is useful for localizing the area of pathology and narrowing the differential diagnosis.
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- Sinonasal Polyposis
attenuation of the ethmoid sinus walls and nasal septum....
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3 sie 2015 · Sinonasal inflammatory disease with sinus ostial obstruction is a very common cause of an opacified paranasal sinus. 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 ...
26 lip 2024 · Acute sinusitis typically presents with fever, headache, postnasal discharge of thick sputum, nasal congestion and an abnormal sense of smell. Acute sinusitis is a clinical diagnosis characterized by symptom duration of less than 4 weeks 11.
23 lis 2012 · The radiologist's role is to report on five key points: the extent of sinus opacification, opacification of sinus drainage pathways, anatomic variants, critical variants, and condition of soft tissues of the brain, neck, and orbits.
25 lut 2009 · Mucoceles are benign, locally expansile paranasal sinus masses most commonly found in the frontal sinus. Secondary to obstruction of the sinus ostia, there is accumulation of fluid within a mucoperiosteal lined cavity, resulting in erosion and remodelling of the surrounding bone.
13 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 ...
18 lis 2023 · What is Sinus Opacification in Imaging? In medical imaging, sinus opacification refers to the visual appearance of cloudy or hazy sinuses on X-rays, CT scans, or MRIs. Normally, sinuses contain air, displaying as clear spaces on images.
