Abstract
Early detection is crucial for successful treatment of all types of cancer. The specificity and sensitivity of the current methods vary from 50% to 80%. The use of specific tumor antigens and cytometric technology has resulted in the development of a new procedure for the early detection of breast tumors. This new method is reported. The test utilizes static cytometry, which records polarization and intensity changes in fluorescent light emitted from each individual lymphocyte obtained from tumor-bearing patients stimulated by the relevant specific tumor antigen. Using MUC-1/SEC as the specific antigen, we detected breast tumors with 85% specificity and 81% sensitivity in 137 breast tumor-bearing women. A significant linear correlation was found between the SCM test and the conventional classification of relative risk for breast cancer in benign lesions, suggesting that this is a precise method that could be used in mass screening for early detection of breast cancer.
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