[Diagnostic value of osseous diversity on CT to sinonasal inverted papilloma].
OBJECTIVE
To evaluate the CT characteristics of osseous diversity in patients with sinonasal inverted papilloma (SIP) and to correlate these characteristics with the origins of tumors.


METHODS
Sinonasal CT images of 28 patients were reviewed retrospectively to detect areas within which there was focal hyperostosis. The correlation between the sites on the CT scans within which there was osseous diversity and the origin of the tumors in the surgery was analyzed.


RESULTS
Surgical evaluation of 22 lesions with focal hyperostosis in CT images revealed that 20 of these lesions coincided with the actual origin of tumor. The focal hyperostosis on CT images corresponded to the actual tumor origin in 71.4% of cases. It denotes the origin of SIP could be predicted from the focal hyperostosis site. The origin of the other 2 cases were disaccord with the focal hyperostosis site, one case had the origin of uncinate process but hyperostosis of anterior middle turbinate, another case had the origin of superior turbinate but hyperostosis of uncinate process. Nine lesions of 28 patients had air sign, 21 lesions had bone absorption and destruction and 19 lesions had bone displacement in CT images. The pressure from tumor growth can induce varied bone destruction and displacement, the source of SIP can be estimated by the bone destruction site and displacement direction.


CONCLUSIONS
There has a relatively high concordance between the origin of the SIP and focal hyperostosis on CT, The source of SIP could be discerned indirectly by bone destruction and displacement, these conduce to assess the disease before surgery and make pertinent operation.
Ye
Jing
J
Department of Otorhinolaryngology Head and Neck Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
Zhou
Wen-Sheng
WS
Jiang
Hong-Qun
HQ
Wang
Min-Jun
MJ
Zhang
Jian
J
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D015576:Hyperostosis / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D010020:Osteonecrosis / Q000000981:diagnostic imaging; D018308:Papilloma, Inverted / Q000000981:diagnostic imaging*; D010255:Paranasal Sinus Neoplasms / Q000000981:diagnostic imaging*; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed