Gynecologic organs

Cervical cancer is the seventh most common cancer diagnosed worldwide. The cervix is prone to movement. Changes in target position and shape may be caused by rectum- and bladder-filling changes, but may also be due to tumor shrinkage during radiotherapy. Fiducial markers are therefore useful to guide both external-beam and internal radiotherapy (brachy). However, traditional markers have a tendency to migrate and fall out of the vaginal wall and cervix while Gold Anchors expand outside the needle and anchor in the tissue.