Clinical validation on role of cancer diagnostic probe in detecting the involved cavity margins missed in permanent pathology of tumor side in breast cancer surgery.

Cancer diagnostic probe (CDP) as a newly entered tool in real-time breast cavity margin evaluation showed great improvement in smart margin shaving intra-operatively. This system increased the rate of involved margin detection to 30% with respect to frozen section. In this study for the first time we showed the independent role of CDP in finding the involved cavity side margins which were not diagnosed by permananet pathology of their tumor side interface. Among 147 detected margins by CDP, 23 lesions with invasive component and ductal carcinoma in-situ/ductal cancerization weren't reported as involved margins in permanent pathology of tumor side. Our gold standard was the histology of cavity margin specimen had been scored as involved lesion by CDP. It seems that even when the permanent pathology of surgical margins is used for final declaration, role of CDP is irreplaceable. This distinguished achievement has been obtained intra-operatively in real-time by CDP while involved report in permanent pathology of tumor margins induce re-surgery for the patient.