“…With far-advanced development of technology and medical science, the precise and accurate pretherapy evaluation has become more and more reliable in recent decasdes, [1][2][3] although it does not reach a satisfactory frontier. [4][5][6] Preoperative assessment is particularly important, based on the fact the higher chance to achieve better outcomes if the diseases can be removed totally (complete cytoreduction surgery to no residual tumors [R0] status or en block resection of tumor) successfully. 7 The above-mentioned concept nearly fits all surgical illnesses, including rectal cancer (RC), prostate cancer (PC), cervical cancer (CC), endometrial cancer (EC), ovarian cancer (OC), and others.…”