If, thanks to the mammogram and ultrasound of the breasts , we can detect suspicious lesions (mass or nodule, microcalcifications), they can not under any circumstances confirm a possible diagnosis of cancer .
Another examination is essential to establish a diagnosis. To know with certainty (or almost) if the abnormality discovered in a breast is cancerous or not, the doctor can suggest a biopsy.
There are two main techniques of breast biopsy: microbiopsy and macrobiopsy (by Mammotome®). The difference between the two techniques is the volume of gland removed which is much more important with macrobiopsy.
Microbiopsies are mainly used for the diagnosis of masses or nodules because their effectiveness is excellent and generally sufficient.
Macrobiopsies are used for mammary microcalcifications because a larger volume of gland is needed to make an accurate diagnosis. They are also used when microbiopsies prove to be insufficient.