[kristen]

Hi Alice,
If this posts twice I am sorry. I was previewing it and all of a sudden it was gone....
I am going thru the same thing right now. They found a cyst on an MRI and that led to blood work, all normal to a sonogram. I had my apt. with an Endocrinologist today and we are going to biopsy it. On the sonogram it said it was hypervascular and hypoechoic, which a doc told me means no sound waves bounced off it. They now call it a mass over 1 cm. To answer your question, yes shortness of breath is a sign to have it checked out, but not necessarily cancer. When I called my onc. she said it's probably nothing, but it has to be checked out by someone else. My internist who found this sent me to an Endo. I think some have mentioned goiters that can do the same thing. A website on the pamphlet he gave me is www.thyca.org It might have some information for you.
He told me that only 5% have BC migrate to the thyroid so it is very rare. 80% of the time it is benign. I asked him specifically is that 80% with the hypervascular etc and he said yes. So here is hoping that both of us are benign. My best to you.