Diagnostic and Interventional Radiology
Head and Neck Imaging - Original Article

Transformation of the maxillary bone in adults with nasal polyposis: a CT morphometric study


Department of Radiology,Celal Bayar University School of Medicine, Manisa, Turkey


Departments of Otorhinolaryngology, Celal Bayar University, Manisa, Turkey


Departments of Radiology, Celal Bayar University, Manisa, Turkey


Department of Radiology,Celal Bayar University School of Medicine, Manisa, Turkey

Diagn Interv Radiol 2010; 16: 122-124
DOI: 10.4261/1305-3825.DIR.2895-09.2
Read: 957 Downloads: 763 Published: 03 September 2019


Nasal polyposis (NP) in adult population is a common problem in otorhinolaryngology outpatient practice. Computed tomography (CT) is the ideal imaging method to investigate paranasal sinus diseases. There is yet no study in the literature measuring the morphometry of maxillary bone in NP. The objectives of this study are to correlate the airway variables obtained by CT findings of both chronic nasal airway obstruction and control group in an adult population, and to investigate whether the bony structure of the airway is affected or not.


Forty NP cases that were followed up for 1–5 years by an otorhinolaryngologist were included in this retrospective study. Forty subjects who had normal findings reported on paranasal CT scans were randomly selected from our CT database as the control group. Maxillary and palatine bones (PB) were evaluated: the plane angle between the maxillary alveolar processes (MAP) and PB, and depth of the maxillary arch of both groups were compared.


The mean angle between MAP and PB plane was wider in the NP group (right 128.1 ± 8.5° and left 126.2 ± 8.5°) than control group (right 106.6 ± 8.1° and left 105.5 ± 7.3°). The mean depth of maxillary arch was significantly smaller in the NP group (1.2 ± 0.2 cm) than in the control group (1.4 ± 0.2 cm).


There could be a relationship between nasal polyposis in adults and maxillary shape. The flattening and shallowing of the maxillary arch detected in patients with NP may indicate that the bony structural changes continue in adulthood.

EISSN 1305-3612