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  • Title: Computed tomography of malignant tumors of the nasal cavity and paranasal sinuses.
    Author: Kondo M, Horiuchi M, Shiga H, Inuyama Y, Dokiya T, Takata Y, Yamashita S, Ido K, Ando Y, Iwata Y, Hashimoto S.
    Journal: Cancer; 1982 Jul 15; 50(2):226-31. PubMed ID: 6282436.
    Abstract:
    Staging of malignant tumors of the nasal cavity and paranasal sinuses by computed tomography (CT) was studied in a total of 49 patients, 33 with squamous cell carcinoma and 16 with tumors of other histologic types. Involved sites by the tumor were studied, and clinical staging was made using CT findings alone according to AJC classification for maxillary sinus tumors. Surgical findings for comparison were available for most cases. Of 33 squamous cell carcinomas and of 16 tumors with other histologic types, the maxillary sinus was the site of origin in 29 and eight, respectively. Of these 37 maxillary sinus tumors, 11 were staged T3, 26, T4, and none was staged T1 or T2. None of these tumors were down staged, and one T3 was upstaged after surgical procedures, although all sinuses were not explored in some cases. Sinusitis due to obstruction was indistinguishable from the tumor without bone destruction. And the determination of the site of origin was difficult in some cases. Despite these, CT should be used for pretreatment evaluation of the tumors of these sites.
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