Most smaller cysts can be removed by 'keyhole' (laparoscopic) surgery.

http://www.patient.co.uk/health/ovarian-cyst-leaflet

Operation

Removal of an ovarian cyst may be advised, especially if you have symptoms or if the cyst is large. Sometimes the specialist may want to remove it to determine exactly which type of cyst it is and to make sure there are no cancer cells in it. Most smaller cysts can be removed by 'keyhole' (laparoscopic) surgery. Some cysts require a more traditional style of operation.