Abstract P1-02-11: Role of FDG-PET/CT in prediction of underestimation of invasive breast cancer in cases of ductal carcinoma in situ diagnosed at needle biopsy

Background: The aim of this study was to evaluate the significance of 18F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) for predicting the underestimation of invasive breast cancer in cases of ductal carcinoma in situ (DCIS) at needle biopsy. Patients and Methods: Of 83 consecutive cases with diagnoses of DCIS at primary needle biopsy who underwent curative surgery between 2010 and 2013, the association between the maximum standardized uptake value (SUVmax) on FDG-PET/CT before excision and the underestimation of invasive breast cancer was examined. Results: There were 29 (34.9%) cases diagnosed to have invasive breast cancer at excision. Receiver operating characteristics (ROC) curve analysis showed the cutoff value of SUVmax to predict underestimation of invasive breast cancer was 1.6. The rates of underestimation were 61.5% for patients with a tumor of SUVmax > 1.6 and 11.4% for patients with a tumor SUV max ≤ 1.6 (p
Source: Cancer Research - Category: Cancer & Oncology Authors: Tags: Poster Session Abstracts Source Type: research