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  • Title: Definitive radiotherapy for T1-T2 squamous cell carcinoma of pyriform sinus.
    Author: Rabbani A, Amdur RJ, Mancuso AA, Werning JW, Kirwan J, Morris CG, Mendenhall WM.
    Journal: Int J Radiat Oncol Biol Phys; 2008 Oct 01; 72(2):351-5. PubMed ID: 18395359.
    Abstract:
    PURPOSE: To report the long-term results after definitive radiotherapy (RT) for T1-T2 pyriform sinus squamous cell carcinoma. PATIENTS AND METHODS: The data from 123 patients with T1-T2 pyriform sinus squamous cell carcinoma treated with RT with or without neck dissection between November 1964 and June 2003 were analyzed. The median follow-up for all patients was 3.2 years, and the median follow-up for living patients was 10.7 years. RESULTS: The 5-year local control, locoregional control, freedom from distant metastasis, cause-specific survival, and overall survival rate was 85%, 70%, 75%, 61%, and 35%, respectively. The ultimate local control rate, including successful salvage of RT failure, for T1 and T2 cancer patients was 96% and 94%, respectively. The overall local control rate with a functional larynx was 83%. Pretreatment computed tomography tumor volume data were available for 55 patients. The median computed tomography tumor volume was 4.2 cm(3) (range, 0-22.4). Local control was worse for patients with a tumor volume >6.5 cm(3) compared with those with a smaller tumor volume. Of the 123 patients, 16% developed moderate to severe acute (2%), late (9%), or postoperative (5%) complications. CONCLUSIONS: Local control with larynx preservation after definitive RT for T1-T2 pyriform sinus squamous cell carcinoma likely results in local control and survival similar to that after total laryngectomy or larynx-conserving surgery. Two-thirds of our living patients retained a functional larynx.
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