I came to post a good result scenario as I noticed a long indentation on my left breast and the GP referred me to the breast unit as a precaution .no lumps were evident . The indent showed up very clearly if I raised my left arm. It also felt like a vein was running right down it. 

The specialist nurses were a little bemused and I had a mammogram and ultrasound the same day . These both were clear.  They thought it could be Mondors... Altho there is nothing to follow up on and I was given all clear

I'm 55 and menopausal with family history of all types of cancer.  I came to this forum when I was referred and decided to post this for anyone else who has the same or similar issue to show not all breast lines are bad news