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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 ...
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- Sinonasal Polyposis
It can also cause a particular pattern of chronic sinusitis...
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1 gru 2007 · In the sphenoethmoidal recess pattern, the sphenoid sinus and the ipsilateral posterior ethmoid cells are involved. The level of obstruction is in the sphenoethmoidal recess. In the sinonasal polyposis pattern, polypoid lesions fill the nasal cavity and the sinuses bilaterally.
1 wrz 2020 · The common patterns of SD are described as being C-shaped or S-shaped in the axial and coronal planes; several classifications include focal (angular) deviation, septal spurs, perforations, and tilts (Fig 7).
Obstruction of the ostiomeatal complex is commonly considered the underlying cause of most cases of sinusitis because obstruction may result in maxillary, ethmoidal, or frontal disease. Predisposing factors that induce local in-flammation of the sinonasal mucosa and occlude the os-tiomeatal complex include allergy, viral infections, and air
20 maj 2013 · When extensive polyps are occupying the nasal cavity and the paranasal sinuses, they can cause widespread obstruction (apart from the inferior meatus) and this is termed the sinonasal polyposis pattern.
16 sty 2020 · Obstruction of the middle meatus, the common drainage way for the frontal, anterior ethmoid, and maxillary sinuses, will cause obstruction of ipsilateral sinuses and is referred to as ostiomeatal (from ostium and meatus) complex (OMC) pattern.
Sinonasal inflammatory disease has been categorized into 5 patterns for better understanding, interpretation, prognostication, and grouping of patients into nonsurgical (normal CT), routine surgical (I and II), and complex surgical groups (III and IV). 46,47 Groups I–III are the obstructive patterns and are based on the major routes of ...
