Abstract
The application of laser therapy to cases of esophageal cancer is considered as follows: Early cancer which is inoperable by some reasons; remaining and/or recurrent cancer which has received the maximum dose of the combined therapy in the inoperable case; malignant esophageal stenosis progressed to the difficulty in passing bolus; airway stenosis due to cancer invasion; intraoperative irradiation to prevent recurrence from invaded neighboring structures (aorta, trachea and bronchus) and the dissected regional metastatic lymph nodes.
Photodynamic therapy (PDT) is applied during intraoperative laser irradiation. The method will be generalized in future.