Lu, 83 years old, female. Pancreatic cancer, unsuitable for surgery due to tumor invasion of blood vessels and old age. Precision radiotherapy of 200 cGy once a day, 5 times a week for a total of 25 times 5000 cGy was applied; heat therapy to the upper abdomen for 50 minutes each time, every other day for a total of 15 times. One month after treatment, the CT was rechecked and the tumor was basically regressed. The following is the comparison of CT before and after treatment.