Hello everyone

Sorry I should have said that I wasn’t previously told I had dcis in the left breast until after the mastectomy and the chemo was successful in killing the HER2 positive cancer that was 34mm

Hi, it's good to hear you are working through your treatment. The good thing like you said is the chemo worked and when you had your surgery are saying that they found a large are of dcis and why wasn't this seen on scans  best wishes xx

I'd had a mammogram about 20 months prior to me funding a lump, which turned out to be Grade 3 and 55mm.   Assuming the mammogram missed it,  it must have grown very quickly in that time.  I guess a mammogram doesn't pick up everything or it grew super quick.

I can’t say of course if your mammograms missed it but I had 6 years of mammograms and only one missed year. My last mammogram was in May 2019, in May 2021 I was diagnosed with my grade 3 HER2 + with lymph node involvement. Because they had mammograms going back to 2013 they could say definitely it wasn’t there, was just very fast growing sadly.

My first DCIS in 2013 however wasn’t visible on mammograms! This was because it was hidden behind my nipple tissue which is thicker in younger women x

Thank you Irishgirl16it is a worry isn’t it that they get missed especially like in your case a grade three cancer 

Thank you Anna12345that does explain it as they have told me the tissue was too dense to get a true reading even on the mri scan. Thank you x

It’s frustrating they can’t always see it, I guess no system is perfect x

It is frustrating but as you say no system is perfect. Just worrying though but I’m still one of the lucky ones as they did kill all of the her2 positive cancer with the chemo and the mastectomy got rid of all the other cancer so all I have left is the radiotherapy the targeted treatments and the bone strengthening infusions xx

Thank you @shaz52 I am one of the lucky ones to have had the aggressive cancer killed by the chemo and all the dcis cancer removed with the mastectomy. I only have the radiotherapy, targeted treatment and bone strengthening infusions to go which will all be finished and done by 2023 xx

I’m pleased they got it all, all we can do is hope and keep going! All the best of luck xx