Just wondering, if you have tuberous breast/Hypoplasia is it possible to still get breast cancer?

Far more important than the technique is the skill and experience of your plastic surgeon. Choose your surgeon rather than the technique and let them explain why one technique may be better than another.  See the below link on some suggestions on finding the most qualified Plastic Surgeon for a Breast Augmentation.  Always insist on a board certified plastic surgeon.

Interesting question. All women have the same risk profile unless that have a geneticially inherited mutation. The size of breasts has not been shown to increase or decrease the risk

Yes, it is possible. As long as you have breast tissue, it is possible. You should see your GP if you want more information.Best,