Validation of a Score of Predictive Factors for Complete Resection in Platinum-sensitive Recurrent Ovarian Cancer

Inclusion Criteria:

* Patients with recurrence of invasive epithelial ovarian-, fallopian tube- or primary peritoneal cancer of any initial stage who have relapsed after a tumor-free interval of at least 6 months after completion of first-line therapy. The same interval applies to patients with second relapse who are enrolled after completed platinum-containing re-induction therapy.
* Women aged \> 18 years
* Patients who have given their signed and written informed consent to data transmission and -processing

Exclusion Criteria:

* Patients with non-epithelial tumors as well as borderline tumors
* Patients who undergo second-look surgery or completion surgery after end of chemotherapy or during the interval
* Only for the study collective: patients with second malignancies who have been treated by laparotomy, as well as other neoplasias, if the treatment could interfere with the treatment of relapsed ovarian cancer
* Patients with a third recurrence
* Patients with so-called platinum-refractory tumor, i.e. progression during chemotherapy or recurrence within 6 months after end of former platinum-containing therapy