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  • Title: [Analysis of prognostic factors in 106 cases of carcinoma of the rhinopharynx treated with cobalt teletherapy].
    Author: Zini G, Alberti G, Armaroli L, Barbieri E, Di Marzio G, Frezza G, Neri S, Silvano M, Babini L.
    Journal: Radiol Med; 1989 Nov; 78(5):430-4. PubMed ID: 2608930.
    Abstract:
    A series of 106 patients affected with nasopharyngeal carcinomas and treated by definitive external irradiation from January 1975 to December 1986 was retrospectively reviewed. The median follow-up, from the end of the treatment, was 43 months (range 24-90). The nasopharynx received not less than 60 Gy to the midplane: the clinically negative neck (N0) was treated with a total dose of 50 Gy and the patients who had N1-3 disease received not less than 60 Gy. Thirty-eight patients had a recurrence in the irradiated areas (31 in the nasopharynx, and 7 in the neck); 17 patients developed distant metastases. Disease-free survival at 60 months was 42%. The most significant prognostic factor (p less than 0.05) was the presence of advanced neck involvement (N2-3), since most of the lymphatic and distant recurrences were observed in this group of patients. The overall results did not reveal but slight differences in the survival according to histology, even though patients with undifferentiated carcinomas had a local recurrence rate significantly lower than those with squamous cell carcinomas. Our findings suggest that patients with N2-3 neck diseases or with locally advanced involvement (T3-4) be treated by adjuvant chemotherapy in order to decrease the risk of local and distant relapses.
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