Hi Charlie3
I had a cyst a few years ago. It was huge. It needed two syringes to drain it …. 40ml in total. 

Movable dense mass. No lump.
My first female GP (long term GP) Said it was cancer. I was in a daze. Then a newly qualified male GP. Very young said it could be one of 10 things. Only one being cancer. But he thought it was most likely a cyst. It was a cyst. No further problems with that breast.
Then this year/end of last year, I found a movable, dence mass in my other breast. I straight away thought of cysts. Very similar to the cyst.
Sadly, after more checks it was Lobular Breast Cancer. Which moves with the breast, is like dense tissue. Is not a lump. Can get confused with cysts. 


Lobular is thread like and hides behind tissue. So is often missed until it gets too big. Not all scans pick it up. Mine was not picked up until it was huge and I could feel it more easily. Threads are not easy to feel.
However, Some ladies have denser tissue generally. Its not cancer. Older post menopausal ladies can get thickening of breast tissue. Its not cancer. But Lobular almost mimics dense tissue. Hides behind it.
So I definitely wouldnt believe any GP who simply states “it moves…so its not cancer”. That is a dangerous myth.
Lobular is the second most known breast cancer. But is only 15% of breast cancers. Lobular Breast Cancer UK and BCNow have great information on what to look for.
But when it is 1 out of 10 possible conditions, its really important not to panic too much. Thats the stance I took with both situations. I didnt want to be stressed for weeks to find out it was a cyst or something that was not a concern.
When I found I had cancer this year, I decided to be practical and planned. Lobular is one of the easiest to treat. My friend, who had lobular in her 30s, only ever had hormone treatment, as it was caught early, and she has been clear of cancer for over 25years.
Sadly mine was caught late and the treatment may be aggressive now. So you do right to get it checked out asap, then, if its worrying news, the good news is its more treatable, the earlier it is found.
Stick to your concerns, and push for what you need. These boobs are ours and we know when we feel changes. But dont panic.
1 put of 10 are odds in your favour.
Good luck. Thinking of you. 

