Necrosis after mastectomy. Do I have enough skin to close a reincison? (Photo)

This happens. In general, deflation of some or all of the fluid in the expanders is the first step. Usually, a return to the operating room is necessary to best examine and deal with the area of tissue loss.Often after decreasing the fluid in the expander, the skin can be closed primarily. If not, then a flap might be necessary.Work closely and frequently with your plastic surgeon during this time. It is a frustrating event for the both of you and only by working together can you get through this common postoperative situation.

From your photographs, you will need to have an operative revision of your mastectomy flaps with removal of all of the necrotic tissue and re-closure of your incisions.  this may or may not require removal of your tissue expanders, but the procedure should be performed sooner rather than later before the tissues become infected.  Good luck!

I would follow your PS's advice and allow the tissue to demarcate and then determine whether a flap or primary closure will be necessary.  It is difficult to assess skin elasticity and tension from simple pictures so having your doctor help you assess this with an examination is important.  There are local wound care instructions such as silvadene and nitropaste and antibiotics that may help.