In the ABC method, which depth corresponds to label B?

In the ABC method, which depth corresponds to label B?

• A. Mid-depth
• B. Superficial
• C. Near chest wall
• D. Deep

Answer: (A)

In this method, depth labels run from the skin surface toward the chest wall, spanning from superficial to deep. The label B sits in the middle of that depth range, so it corresponds to the mid-depth zone. Imagine dividing the breast from skin to chest wall into four equal layers—the second layer is the mid-depth, which is where label B lies. So the depth for label B is mid-depth. The other options describe shallower or deeper regions: superficial is closest to the skin, near chest wall is closer to the rib cage, and deep is the deepest part toward the chest wall.

In this method, depth labels run from the skin surface toward the chest wall, spanning from superficial to deep. The label B sits in the middle of that depth range, so it corresponds to the mid-depth zone. Imagine dividing the breast from skin to chest wall into four equal layers—the second layer is the mid-depth, which is where label B lies.

So the depth for label B is mid-depth. The other options describe shallower or deeper regions: superficial is closest to the skin, near chest wall is closer to the rib cage, and deep is the deepest part toward the chest wall.