Yes. I have a Cyst in my right breast. I must go back about every other year for an ultrasound. I also have an enlarged lymph gland (?) they are watching. This last ultra scan was VERY thorough....I was pretty shaken up that it took so long, and much relieved when they said all was ok. When I had cancer in the left breast....they took care of everything right then, at the same time.....another mammo, and an ultra scan. By the way, it's been 19 years since then.