DNA FLOW CYTOMETRY IN PRIMARY BREAST CARCINOMA

Abstract
DNA flow cytometric values were recorded in 66 primary breast carcinomas. A total of 26 tumors were found to be diploid; 40 were non-diploid. About 10% of the cells belonged to the S-phase fraction. Non-diploid tumors had significantly larger S-cell fractions (> 10%) than diploid ones. High tumor ploidy correlated positively with high clinical stage (stage 1 vs. stage .gtoreq. II) and with high histological grade but was unrelated to estrogen-receptor content and menopausal status.