title: [Epidemiologic studies on multiple cancers in Japan].
abstract: During a 21-year period, 3040 patients with malignant tumors were treated at the Division of Surgery, Fukuyama National Hospital. Of these 86 (2.8%) were diagnosed as having double cancers. The simultaneous double cancer rate was 27.3%. Statistical study showed that the etiology had a relation to family history and previous therapy, but not to immunology. The prognosis was good and diagnosis by RI was non-specific.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001943:Breast Neoplasms / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D003110:Colonic Neoplasms / Q000453:epidemiology; D005260:Female; D006801:Humans; D007223:Infant; D007564:Japan; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000453:epidemiology*; D012737:Sex Factors; D013274:Stomach Neoplasms / Q000453:epidemiology; D013964:Thyroid Neoplasms / Q000453:epidemiology; D002583:Uterine Cervical Neoplasms / Q000453:epidemiology