[Photodynamic therapy and its application in gynecologic oncology].

While photodynamic therapy is applied on neoplasm, photosensitisers tend to accumulate in neoplastic tissues. With appropriate wavelength light, it causes photochemical reaction and destructs neoplastic tissues. Its better selection for tumor tissue with effective photochemical reaction, and lower side effect make it widespread application in gynecologic oncology. At present, photodynamic therapy has been used in diagnosing and treating lower genital tract carcinoma in situ, and advanced malignant tumor such as vulval and ovarian carcinoma.