A dent is not a lump, is it?

One day I happened to put my arms above my head, while in front of the mirror. There was a dent in the lower part of one breast. Darn I thought. Is this another one of those signs of old age no one told me about. I ignored it but a little voice kept bringing it up. Finally I checked the web. It shared that a growth in the breast could cause a pulling in of the skin. I should have it checked out. Long story short, I was found to have breast cancer and started the process of surgery, chemo and radiation. But most important, I am now very aware that I should question any change in my body. It could save my life!
Reston, VA