3incollege, was it a regular mamo or the new digital? If it is there the new digatal are really good at finding it. If they see a little something on a regular mamo they call you back for an ultrasound. After the ultrasound they sometimes do a needle aspiration if they think it's a cyst. Mine was and it was a huge relief. If you are really worried maybe you can schedule an ultrasound on the suspect spot?