title: Metastatic cancer of unknown primary site.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis / Q000401:mortality; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis / Q000175:diagnosis* / Q000453:epidemiology* / Q000401:mortality