Diagnostic mammo & ultrasound found mass of breast lumps containing fluid, but 1 had fluid & debris. what does this mean?

Hemorrhagic Cyst: It is important to know that all of the "lumps" were either simple or minimally complex cysts. Please verify that with your doctor. Assuming that is true, the cyst containing fluid and debris is called a minimally complex cyst, and these are often due to hemorrhage. Clotted blood in the cyst is mostly water (the fluid part) and the clot (cells) are the debris.

Complex Cyst: Breast cysts arise from blocked milk ducts and are quite common--they are present in 35-50% of women between 30-50. They are of no concern except they can be mistaken for tumors on mammogram; the ultrasound tells us these "densities" are fluid-filled and, therefore, of no concern. Once in a blue moon, what we think is a complex cyst is solid--therefore, we usually repeat an u/s in 6 months.