In the 123 method, which location corresponds to the periphery of breast tissue?

In the 123 method, which location corresponds to the periphery of breast tissue?

• A. Location 1
• B. Location 2
• C. Location 3
• D. Location 4

Answer: (C)

The 123 method divides the breast into three zones from the center toward the edge. The innermost zone is closest to the nipple, the middle zone sits between, and the outer boundary—farther from the nipple—is the periphery. So the periphery corresponds to the outermost, peripheral zone in this scheme. This mapping helps ensure a systematic, full-coverage assessment, since tissue characteristics can differ between the inner and outer regions.

The 123 method divides the breast into three zones from the center toward the edge. The innermost zone is closest to the nipple, the middle zone sits between, and the outer boundary—farther from the nipple—is the periphery. So the periphery corresponds to the outermost, peripheral zone in this scheme. This mapping helps ensure a systematic, full-coverage assessment, since tissue characteristics can differ between the inner and outer regions.