Difference between armpit fat and axillary breast? (Photo)

While this does have an appearance of axillary breast tissue a formal examination would be necessary to confirm this. 

Thank you for your question and your photo.  It can be difficult to determine from just a photograph the difference between axillary breast tissue and simple excess fat.  This is best determined by direct examination, and possible ultrasound imaging.  Axillary breast is best removed by direct surgical excision, with an incision that hides in the armpit.  Excess fat in this area is often problematic to get rid of by diet and exercise alone - this represents a very common "problem area", even in people who are otherwise quite thin.  Liposuction is an easy and effective means of treating the problem, with minimal recovery time and discomfort.

Thank
you for your question. An examination would be necessary to evaluate
if liposuction alone or liposuction in combination with a skin excision
is needed. Consult with a board certified Plastic Surgeon.
Best Wishes