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Radiation therapy for colorectal cancer
1Department of Radiation Oncology, Princess Margaret Hospital, Toronto, Ontario, Canada.
The Surgical Clinics of North America
|February 1, 1993
Summary
Radiation therapy effectively manages colorectal cancer by eliminating subclinical disease and controlling bulky tumors. Combining radiation with chemotherapy improves survival rates, with future advancements expected through biological understanding and predictive assays.
Area of Science:
- Oncology
- Radiation Oncology
- Gastrointestinal Oncology
Background:
- Radiation therapy's role in colorectal cancer management is increasingly understood.
- It can eradicate microscopic cancer deposits and control macroscopic tumors at tolerable doses.
Purpose of the Study:
- To review the current understanding and future directions of radiation therapy in colorectal cancer.
- To highlight the benefits of combining radiation with chemotherapy.
Main Methods:
- Review of clinical studies on radiation therapy for colorectal cancer.
- Analysis of combined radiation and chemotherapy outcomes.
Main Results:
- Radiation therapy effectively sterilizes subclinical colorectal cancer.
- Combined modality treatment shows improved survival in rectal cancer adjuvant therapy.
- Radiation can control bulky colorectal tumors to some extent.
Conclusions:
- Radiation therapy is a key component in colorectal cancer management.
- Combination therapies are likely to enhance tumor control and survival.
- Future research will focus on radiation scheduling and patient selection guided by cancer biology and predictive assays.