Cancer Blood Test Using BC200 RNA Isolated from Peripheral Blood for Diagnosis and Treatment of Invasive Breast Cancer

A diagnostic method for detecting an increased risk of invasive breast cancer in a patient comprising;

• a) obtaining a whole blood sample from said patient;
• b) isolating and measuring the levels of BC200 RNA present in said sample relative to predetermined levels observed in patients selected from the group consisting of
• i) control patients without evidence of disease;
• ii) patients having primary disease;
• iii) patients having metastatic disease
• wherein said isolated levels are compared with those previously determined in i, ii, or iii, patients having levels of circulating BC200 RNA levels which are elevated relative to those observed in i) having an increased risk for the development of aggressive breast cancer.