Are my breasts abnormal? Do I have parenchymal maldistribution? (Photos)

Your
breasts are ptotic, not tuberous.  You
need a lift and I recommend is The Bellesoma Method.  This technique will reshape your breast
tissue creating upper pole fullness without implants, elevate them higher on
the chest wall and more medial to increase your cleavage.  Vertical scars are avoided, nipple sensation
and the ability to breast feed are maintained. 
At the same time or later, fat transfers can be performed if additional
volume is desired.Best Wishes,Gary Horndeski, M.D.

Dear christinaleanne,based on your photos, your breasts look normal. However, it looks like there is slight asymmetry as well as ptosis. If you are considering a surgery, I would suggest you to consult a board-certified plastic surgeon. Only after a thorough examination you will get more information and recommendations.
Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

Thank you for your question and photographs.  Your photograph indicates that you have normal breasts with some asymmetry and ptosis (or breast droop).  Should you want more volume to your breasts, specifically in the upper pole, you may want to consider a breast augmentation and possibly a mastopexy or breast lift.  Best to consult with a board certified plastic surgeon for an in-person consultation.  Good luck.