title: Radiation therapy of carcinoma of the oropharynx.
abstract: Forty consecutive cases of carcinoma of the oropharynx were treated by irradiation from 1973 through 1987. The overall five-year survival rate calculated by the Kaplan-Meier method was 21%. Data were also analyzed retrospectively to investigate the factors associated with prognosis. The following results were obtained. (1) The results of re-irradiation as salvage treatment were poor. (2) Irradiation to neck lymph node metastases was not particularly effective, especially under 50 Gy. (3) Stage T2(-4) primary tumors were difficult to control with irradiation of 50 Gy.
authors.affiliation: Department of Radiology, University of Tokyo, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Sakata
authors.forename: A
authors.initials: A
authors.lastname: Akanuma
authors.forename: Y
authors.initials: Y
authors.lastname: Aoki
authors.forename: K
authors.initials: K
authors.lastname: Nakagawa
authors.forename: K
authors.initials: K
authors.lastname: Karasawa
authors.forename: M
authors.initials: M
authors.lastname: Iio
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002294:Carcinoma, Squamous Cell / Q000473:pathology / Q000532:radiotherapy*; D003037:Cobalt Radioisotopes / Q000627:therapeutic use; D003131:Combined Modality Therapy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D009367:Neoplasm Staging; D009959:Oropharyngeal Neoplasms / Q000473:pathology / Q000532:radiotherapy*; D010610:Pharyngeal Neoplasms / Q000532:radiotherapy*; D011867:Radioisotope Teletherapy; D011879:Radiotherapy Dosage
chemical_list: D003037:Cobalt Radioisotopes