Findings on a Mammogram and Mammogram Results

Image A: The breast is composed almost entirely of fat. Fibrous and glandular tissue makes up less than 25 % of the breast. About 1 in 10 women have this.

This also a negative result, but to be complete it’s noted there are findings that appear benign (not suspicious), such as a cyst.

Dense breast tissue can look light gray or white on a mammogram. This can make abnormal findings on a mammogram hard to see.

Breast Cancer Screening with 3D Mammography or Tomosynthesis ...

Things seen on mammogram

Mammogram images: Normal, abnormal, and breast cancer

Duct ectasia is more common in people who smoke, although the exact reason for this is unknown.

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Sclerosing adenosis

This is an overgrowth of tissue in the breast lobules. It might not cause any symptoms and in that case, would be found by mammogram. Like the radial scar, it can look like cancer, so needs to be tested.

Mammography uses X-rays to create images of the breast. These images are called mammograms.

Findings on a Mammogram and Mammogram Results

Mammogram images: Normal, abnormal, and breast cancer

The mammograms below show a range of breast density. Some breasts are mostly fat (fatty breasts), and some breasts are mostly breast tissue (dense breasts).

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Dense breast tissue

Fibromas are found in the breast lobule, which is the part of the breast that produces milk. Lobules are made up of glands (that hold the milk), ducts (where the milk travels out of the breast) and fibrous tissue (that holds the breast shape). Fibroadenomas occurs when are tissue in the lobule overgrows and becomes hard.

Fibroadenomas and cysts are benign breast masses that can appear in fibrocystic breast tissue. These can occur alone or in groups and show up on mammograms as a dense (white) mass.

Normal and Abnormal Mammogram Images

Mammograms Showing Breast Cancer

Some, but not all, radiologists may divide this category further into 4A, 4B and 4C based on how suspicious the findings are for cancer (4A look the least like cancer).

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Ductal carcinoma in situ (DCIS)

This mammogram highlights thickened areas that are typical of fibrocystic changes. You can also identify some ducts by the patterns they form.

As a woman gets nearer to menopause and the breasts age (from 35 years onwards) the ducts behind the nipple shorten and widen. Sometimes a fluid is produced that can collect in the widened ducts. Nipple discharge might be thick or watery, green, black or occasionally bloodstained. A lump may be felt behind the nipple due to thickened, scarred tissue. Occasionally the nipple may start to indraw as the ducts shorten. These symptoms need to be thoroughly investigated by mammogram to exclude cancer.

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Mammograms Services at Beekley Center | Bristol Health CT

Mammogram images: Normal, abnormal, and breast cancer

The findings do not definitely look like cancer but could be cancer.

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Invasive breast cancer

Macrocalcifications (large calcifications) are larger bits of calcium due to the normal process of aging in the breasts. They are found in roughly half of women over the age of 50, and unlike microcalcifications, are not usually a sign of cancer.

Radial scar: Pictorial essay: Breast USG by G. Shah and B. Jankharia is licensed under CC BY 2.0. This image has been cropped from the original.

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