Correlation Between the Intensity of Breast FDG Uptake and Menstrual Cycle

The physical FDG uptake in the normal breast tissues is generally homogeneous. There is no Grade III FDG uptake in the normal breast tissues in menopause women without using exogenous hormones or in proliferative phase women. In addition, there is no Grade I FDG uptake in the normal breast tissues in the ovulatory phase or secretory phase women.