How does breast tissue migrate to the armpit area? (photos)

Hello.  This is a common location for extra breast tissue.  This area probably contains both fibrous glandular breast as well as fat.  Liposuction can remove the fat but not the solid breast.  Your right armpit, more than the left,  seems to have a bit of extra skin, so I would recommend an excision of both sides to have the best chance of the areas being flat after surgery without loose skin.  Blue Cross insurance considers this cosmetic in my state.  The risk of cancer is low, but it is a good idea to have your surgeon send the removed gland to the pathologist.

The growth under your arms may indeed be breast
tissue that has grown over time. It should be removed surgically and sent to a
pathologist to make sure that the tissue is benign. Consult a board certified
plastic surgeon to discuss your options for removing this tissue.

This accessory breast tissue may be removed with excision. It really depends on the surgical technique applied and the surgeon to determine the cost, but I estimate it would be a few thousand dollars.

Thank you for sharing. This may be excess breast tissue that has developed over time. Seeing a board certified plastic surgeon in person will best determine your needs and amount of tissue that needs to be removed. Each patient is unique and may need a unique plan to her. Hope that helps!

Hi... thank you for the question and photos... this tissue did not migrate... it have been there all the time, it is just responding to stimulation to grow and your hormonal levels, it can be remove under local anaesthesia. 

Breast tissue does not migrate this area, but was there when you were born. Now it is just responding to stimulation to grow. It is usually easy to remove surgically and often the scar can be well hidden.

Hello kokocharmz95. Thanks for your post and photos. Your breasts tissue extends into the armpit region naturally. There's a portion of the breasts that occurs called the Tail of Spence. In some, it can grow a lot and be quite noticeable.  There are surgical options available like direct excision and/or liposuction. Seek a consult with a surgeon certified by the American Board of Plastic Surgery in your area. Best, Dr. ALDO.

The accessory breast tissue in your axilla may increase in size with weight gain or hormonal stimulation. This condition is common among women and can be treated with excision. Some health insurances may even cover the cost of the procedure. Check with your primary care MD and ask for a referral to a board certified plastic surgeon.