Biomaterial Database

Radiation therapy of recurrent nasopharyngeal carcinoma. Report on 219 patients. 1983

J H Yan, and Y H Hu, and X Z Gu

Recurrent nasopharyngeal carcinoma (NPC), if left untreated, has a 5-year survival of less than one per cent. In contrast, the overall 5-year survival in a treated series of patients was 18 per cent. Excluding those with distant metastases at the beginning of the retreatment, the 5-year survival was 23 per cent. If the recurrence was limited to the neck, a 5-year survival of 34 per cent was obtained and if it was confined to the nasopharynx the 5-year survival was 25 per cent. High doses (about 60 Gy), using multiple narrow beams, carefully directed, were required. For recurrences in the neck, lymph node dissection supplemented by a lower radiation dose should be considered. Surgery was sometimes the only possible method for cure, when recurrence occurred in the neck nodes. Recurrences in the neck, especially when repeatedly appearing, most often were combined with a local recurrence in the nasopharynx.

UI	MeSH Term	Description	Entries
D008197	Lymph Node Excision	Surgical excision of one or more lymph nodes. Its most common use is in cancer surgery. (From Dorland, 28th ed, p966)	Lymph Node Dissection,Lymphadenectomy,Dissection, Lymph Node,Dissections, Lymph Node,Excision, Lymph Node,Excisions, Lymph Node,Lymph Node Dissections,Lymph Node Excisions,Lymphadenectomies,Node Dissection, Lymph,Node Dissections, Lymph
D009303	Nasopharyngeal Neoplasms	Tumors or cancer of the NASOPHARYNX.	Cancer of Nasopharynx,Nasopharyngeal Cancer,Cancer of the Nasopharynx,Nasopharynx Cancer,Nasopharynx Neoplasms,Neoplasms, Nasopharyngeal,Cancer, Nasopharyngeal,Cancer, Nasopharynx,Cancers, Nasopharyngeal,Cancers, Nasopharynx,Nasopharyngeal Cancers,Nasopharyngeal Neoplasm,Nasopharynx Cancers,Nasopharynx Neoplasm,Neoplasm, Nasopharyngeal,Neoplasm, Nasopharynx,Neoplasms, Nasopharynx
D009364	Neoplasm Recurrence, Local	The local recurrence of a neoplasm following treatment. It arises from microscopic cells of the original neoplasm that have escaped therapeutic intervention and later become clinically visible at the original site.	Local Neoplasm Recurrence,Local Neoplasm Recurrences,Locoregional Neoplasm Recurrence,Neoplasm Recurrence, Locoregional,Neoplasm Recurrences, Local,Recurrence, Local Neoplasm,Recurrence, Locoregional Neoplasm,Recurrences, Local Neoplasm,Locoregional Neoplasm Recurrences,Neoplasm Recurrences, Locoregional,Recurrences, Locoregional Neoplasm
D011878	Radiotherapy	The use of IONIZING RADIATION to treat malignant NEOPLASMS and some benign conditions.	Radiotherapy, Targeted,Targeted Radiotherapy,Radiation Therapy,Radiation Therapy, Targeted,Radiation Treatment,Targeted Radiation Therapy,Radiation Therapies,Radiation Therapies, Targeted,Radiation Treatments,Radiotherapies,Radiotherapies, Targeted,Targeted Radiation Therapies,Targeted Radiotherapies,Therapies, Radiation,Therapies, Targeted Radiation,Therapy, Radiation,Therapy, Targeted Radiation,Treatment, Radiation
D011879	Radiotherapy Dosage	The total amount of radiation absorbed by tissues as a result of radiotherapy.	Dosage, Radiotherapy,Dosages, Radiotherapy,Radiotherapy Dosages
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012189	Retrospective Studies	Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.	Retrospective Study,Studies, Retrospective,Study, Retrospective
D013997	Time Factors	Elements of limited time intervals, contributing to particular results or situations.	Time Series,Factor, Time,Time Factor