Accessory maxillary ostium

A study on
the association between accessory maxillary ostium and maxillary sinus mucosal thickening using cone beam computed tomography.  A coronal CBCT section showing AMO in the right maxillary sinus, deviation of the nasal septum and mucosal thickening in the floor of the sinus. B corresponding axial and C sagittal section. Coloured linear annotations are used to precisely locate the site of AMO in all three planes
head-face-med.biomedcentral.com • CC-by-4.0
A study on
the association between accessory maxillary ostium and maxillary sinus mucosal thickening using cone beam computed tomography. Coronal CBCT section showing method used to determine the location of AMO in vertical dimension (C). The distance C is obtained by measuring the distance between 2 horizontal lines A1-A (passing through the most inferior point of the AMO) and B1-B (passing through the most inferior point on the floor of the maxillary sinus)
head-face-med.biomedcentral.com • CC-by-4.0
A study on
the association between accessory maxillary ostium and maxillary sinus mucosal thickening using cone beam computed tomography. Axial CBCT section showing method used to determine the location of AMO in antero-posterior dimension (D). The distance (D) is obtained by measuring the distance between 2 horizontal lines F1-F (passing through the most anterior point of the AMO) and E1- E (passing through the most anterior point of the sinus)
head-face-med.biomedcentral.com • CC-by-4.0
A study on
the association between accessory maxillary ostium and maxillary sinus mucosal thickening using cone beam computed tomography. Two-sided yellow arrow depicting the maximal length of the AMO located on the lateral nasal wall observed in the sagittal CBCT section
head-face-med.biomedcentral.com • CC-by-4.0
Accessory
Maxillary Ostia: Prevalence of an Anatomical Variant and Association with Chronic Sinusitis | Figure 1 Paranasal CT scan showed the right accessory ostium.
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Accessory
Maxillary Ostia: Prevalence of an Anatomical Variant and Association with Chronic Sinusitis | Figure 3 Paranasal CT scan indicated bilateral accessory ostia with sinusitis.
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Accessory maxillary ostia are a common anatomic variant, and are usually found incidentally on CT scans of the paranasal sinuses. Accessory ostia of the maxillary sinus are common, occurring in up to 40% patients . No significant association has been found between the presence of accessory ostia and symptomatic chronic rhinosinusitis or pathological mucosal thickening of the maxillary antra.

Siehe auch:
Assoziationen und Differentialdiagnosen zu akzessorisches Ostium maxillare: