CONCLUSION: PDT can do damage to membranous structures of esophageal carcinoma cells,which suggests that PDT may have clinical efficacy for treatment of esophageal carcinoma.

• 结论： 光动力疗法可导致食管癌细胞超微结构，尤其是膜性结构损伤，因而可能具有治疗食管肿瘤的效应。