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Maxillary squamous cell carcinomas staged by computed tomography.

M Kondo, Y Ando, Y Inuyama

    International Journal of Radiation Oncology, Biology, Physics
    |January 1, 1986
    PubMed
    Summary
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    Computed tomography (CT) accurately stages maxillary squamous cell carcinoma. For N0 patients, T3 tumors showed better local control than T2 or T4, with maxillectomy improving outcomes for advanced stages.

    Area of Science:

    • Oncology
    • Radiology
    • Head and Neck Surgery

    Background:

    • Maxillary squamous cell carcinoma presents a challenge in accurate staging and treatment planning.
    • Computed tomography (CT) is a key imaging modality in head and neck oncology.

    Purpose of the Study:

    • To evaluate the role of computed tomography (CT) in T-staging of maxillary squamous cell carcinoma.
    • To assess local control rates based on T-stage and treatment modalities.
    • To determine the impact of maxillectomy and radiation dose on patient prognosis.

    Main Methods:

    • Retrospective analysis of 72 patients with maxillary squamous cell carcinoma.
    • T-staging performed using computed tomography (CT) based on the AJCC classification.
    • Evaluation of local control rates in N0 patients with a minimum 2-year follow-up.

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    Main Results:

    • CT classified tumors as T2 (n=5), T3 (n=31), and T4 (n=36).
    • Local control rates for T2, T3, and T4 tumors were 33%, 64%, and 38%, respectively.
    • Maxillectomy appeared to improve local prognosis for T3 and T4 tumors. High radiation doses (≥60 Gy) benefited T3 tumors without maxillectomy.

    Conclusions:

    • Computed tomography (CT) is valuable for objective tumor classification and assessing resectability in maxillary squamous cell carcinoma.
    • Precise delineation of tumor extent by CT aids in treatment selection.
    • Treatment strategies, including maxillectomy and radiation dose, significantly influence local control rates.