title: Carcinoma of the nasopharynx treated in the RRTI.
abstract: 80 patients with carcinoma of the nasopharynx classified according to TNM categories who have been treated in the RRTI between January 1947 and January 1966 are discussed. During 1947-1957 patients were treated by orthovoltage, and after this period by cobalt machine. The actuarial 5-year survival rate was 35%. Various factors such as age, sex, sign and symptoms, TNM classification, histology and type of treatment are discussed and related to the incidence of:local recurrence 27% (20/73); regional recurrence 29% (17/58); invasion of the base of the skull 21% (16/78); regional metastases 38% (30/78); distant metastases 49% (38/78), and to 5-year survival 33% (26/80). An overview is given of the present method of treatment in the RRTI based on the data in literature and obtained in this analysis.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000532:radiotherapy; D003037:Cobalt Radioisotopes; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009303:Nasopharyngeal Neoplasms / Q000532:radiotherapy*; D009362:Neoplasm Metastasis; D009364:Neoplasm Recurrence, Local; D011867:Radioisotope Teletherapy; D011879:Radiotherapy Dosage; D012189:Retrospective Studies
chemical_list: D003037:Cobalt Radioisotopes