光动力治疗(Photodynam ic therapy,PDT)能选择性消灭局部肿瘤而不危及正常组织,且与传统抗肿瘤疗法具有协同作用,近年已从实验研究进展到临床应用阶段,首先在食管癌、肺癌、膀胱癌等空腔脏器肿瘤治疗取得重大进展,并逐步扩展到胰腺癌等实质脏器肿瘤的实验和临床治疗;具体疗法 Photodynamic therapy (PDT) can selectively eliminate local tumors without endangering normal tissues, and has a synergistic effect with traditional anti-tumor therapy. It has progressed from experimental research to clinical application in recent years, first in esophageal cancer, lung cancer, Significant progress has been made in the treatment of bladder cancer and other visceral organs, and has gradually expanded to experimental and clinical treatment of parenchymal organ tumors such as pancreatic cancer; specific therapies