![]() In ADH, the cells grow in an abnormal pattern and have some (but not all) of the features of ductal carcinoma in-situ (DCIS, which is a pre-cancer). This can be either atypical ductal hyperplasia (ADH) or atypical lobular hyperplasia (ALH). If the growth looks more abnormal, it may be called atypical hyperplasia. ![]() If growth in the ducts looks much like the normal pattern under the microscope, it may be called usual ductal hyperplasia. Hyperplasia means that there are more cells than usual, and they are no longer lined up in just the 2 layers. Normally, the ducts and lobules are lined by 2 layers of cells. Hyperplasia is a term used when there is growth of cells within the ducts and/or lobules of the breast that is not cancer. The normal breast is made of milk ducts (tiny tubes) that end in a group of sacs called lobules (where milk is made). An excisional biopsy is much like a type of breast-conserving surgery called a lumpectomy. ![]() This can be either an incisional biopsy, in which only part of an abnormal area is removed, or an excisional biopsy, which removes the entire abnormal area, often with some of the surrounding normal tissue. In some situations, a surgical biopsy might be needed. In a needle biopsy, a hollow needle is used to remove samples from an abnormal area in your breast. ![]() The information here is meant to help you understand some of the medical terms you might see in your pathology report after a breast biopsy, which might be a needle biopsy or a surgical (open) biopsy. Your doctors will use this report to help manage your care. After testing the samples, the pathologist creates a report on what was found. Biopsy samples taken from your breast are studied by a doctor with special training, called a pathologist. ![]()
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