Fig. 3

Colposcopic images showing application of PDT in the cervix. CINIIwith cervical gland involvement in the cervix before PDT, showing lesion site at both cervical surface and cervical canal with acetowhitening (A); 3 months after PDT, showing residual lesion site at 6 o’clock of cervical surface with acetowhitening (C); 6 months after PDT, showing residual lesion site still at 6 o’clock of cervical surface with acetowhitening (C); 12 months after PDT, there was no evidence of HSIL lesions with acetowhitening (D).