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[Epidemiologic studies on multiple cancers in Japan].
Gan No Rinsho. Japan Journal of Cancer Clinics
|May 1, 1983
Summary
This study found that 2.8% of cancer patients had double cancers, with etiology linked to family history and prior therapy. Prognosis for these patients was generally good.
Area of Science:
- Oncology
- Surgical Oncology
- Cancer Epidemiology
Context:
- A 21-year retrospective study was conducted at the Division of Surgery, Fukuyama National Hospital.
- The study analyzed a cohort of 3040 patients treated for malignant tumors.
Purpose:
- To determine the incidence and characteristics of double cancers among patients treated for malignant tumors.
- To investigate the etiological factors and prognostic outcomes associated with double cancers.
Summary:
- Out of 3040 patients, 86 (2.8%) were diagnosed with double cancers.
- The simultaneous double cancer rate was 27.3%.
- Etiology showed a correlation with family history and previous therapy, but not with immunology. Radioisotope (RI) diagnosis was non-specific, and prognosis was favorable.
Impact:
- Highlights the prevalence of double cancers in a surgical oncology setting.
- Provides insights into etiological factors, aiding in risk assessment and potentially early detection strategies.
- Suggests that despite the complexity of double cancers, a good prognosis is achievable, informing patient counseling and treatment planning.