Factors affecting appearance Breast density

The composition of the breast affects the appearance of the image and the sensitivity of the study for detection of abnormal soft tissue densities. The image on the right depicts the two extremes of breast composition.

Radiologists are required to report the breast composition in their reports to alert the reader to the relative sensitivity of the study for detection of non-calcified cancers. There are four categories of breast density.

1. Fatty
2. Scattered
3. Heterogeneously dense
4. Extremely dense

Identify the following:

1. Fatty breast

2. Extremely dense breast