we will search medical records of primary ovarian cancer patients underwent CT abdomen, laparoscopy followed by cytoreductive surgery to calculate peritoneal carcinomatosis extent by each modality.
Regional PCI was calculated in each of the 13 anatomical abdominopelvic regions, then total PCI by summation of the lesion size score, it ranged from 0 to 39. Categorization of peritoneal carcinomatosis was classified into 3 categories low if PCI \< 10, moderate if 10-20, and large if \>20.
