Sarcomas of the nasopharynx.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008207:Lymphatic Metastasis; D008223:Lymphoma / Q000401:mortality / Q000532:radiotherapy*; D016403:Lymphoma, Large B-Cell, Diffuse / Q000401:mortality / Q000532:radiotherapy*; D008228:Lymphoma, Non-Hodgkin / Q000532:radiotherapy; D008297:Male; D008875:Middle Aged; D009303:Nasopharyngeal Neoplasms / Q000401:mortality / Q000532:radiotherapy*; D009362:Neoplasm Metastasis; D009364:Neoplasm Recurrence, Local; D011379:Prognosis; D011879:Radiotherapy Dosage; D012509:Sarcoma / Q000532:radiotherapy; D013997:Time Factors