title: The radiologic evaluation of osteitis type and formation in chronic rhinosinusitis with and without nasal polyposis.
abstract: OBJECTIVE
  To evaluate the amount and type of osteitis observed in chronic rhinosinusitis with nasal polyposis (CRSwNP) and compare it with that of chronic rhinosinusitis without nasal polyposis (CRSnNP).
  
  
  METHODS
  Sisli Etfal Research and Education Hospital, Istanbul, Turkey.
  
  
  METHODS
  Prospective, single-blind, cohort study.
  
  
  METHODS
  Three different patient groups, designated as the CRSwNP, CRSnNP, and control groups, were included in the study. Forty patients who had CRSnNP and/or CRSwNP confirmed with a paranasal sinus computerized tomography (CT) study were included for the study group, and 20 individuals were included in the control group. Paranasal sinus CTs were evaluated and compared for osteitis.
  
  
  RESULTS
  Hounsfield units obtained from the right and left agger nasi walls and the medial maxillary sinus wall in the control group were significantly different from the entire group. Similarly, values for the anterior ethmoid wall were statistically significant for the CRSwNP group compared with all the subjects. When the groups were compared to one another, there were significant differences in both the right and left agger nasi walls and the frontal sinus wall.
  
  
  CONCLUSIONS
  Differentiating and acknowledging osteitis induced by CRSwNP rather than CRSnNP may aid in preoperative planning and indicate where to be more aggressive when excising bony structures. This may help in reducing recurrence and in increasing quality of life.
authors.affiliation: Department of Otolaryngology, Acibadem University School of Medicine, Istanbul, Turkey.
authors.forename: Ismet Emrah
authors.initials: IE
authors.lastname: Emre
authors.forename: Irfan
authors.initials: I
authors.lastname: Celebi
authors.forename: Ibrahim
authors.initials: I
authors.lastname: Ercan
mesh_terms: D000328:Adult; D002908:Chronic Disease; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009298:Nasal Polyps / Q000150:complications / Q000000981:diagnostic imaging*; D010000:Osteitis / Q000000981:diagnostic imaging* / Q000209:etiology; D010256:Paranasal Sinuses / Q000000981:diagnostic imaging*; D011446:Prospective Studies; D011788:Quality of Life; D012220:Rhinitis / Q000150:complications / Q000000981:diagnostic imaging*; D016037:Single-Blind Method; D012852:Sinusitis / Q000150:complications / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed