In my case I have 2.7 cm tumor with oncotype dx negative and genetic testing negative , they did lumpectomy three weeks back that is two months after my initial diagnosis. They said shrinking a tumor is an option I might can consider if I needed chemotherapy . Since I don’t need chemo and only radiation they did lumpectomy. Tumor size and conservative approach to save breadt may be the reasons they want to shrink the tumor before surgery in your case .

@A MyBCTeam Member: and at the very least compare info! So often we take what a doctor says as gospel, because they're a doctor! But there are lots of doctors with lots of opinions, and lots of us going through the same things, so it's nice to have our sisters to turn to to learn more. I've learned a lot from this Site ❤

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A MyBCTea...

@A MyBCTeam Member: Nope - oncotype tests are a profile test to weigh the benefits of chemo in estrogen positive cancer. I had surgery immediately and it was in my lymph nodes, so there wasn't much point - once it's in your nodes (3 in my case) chemo is pretty much a foregone conclusion. I honestly didn't even know what an oncotype test was until after my mastectomy was already done..

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A MyBCTea...

@Catob: so interesting how it differs from doc to doc....My dx was very similar to yours - IDC right breast, tumour was smaller than yours (1.6cm at dx - after surgery turned out to be 3.8cm, largest of 3 tumours + 3 positive lymph nodes), HER negative as well, and I am 100% ER/PR positive. Yet immediate surgery was the only option I was given....

I had chemo first with stage 1 IDC. The reasoning was because I was HER2 positive. This dictated my treatment plan as it is very aggressive and the recommended treatment is herceptin and perjeta for 1 year. After 6 rounds of TCHP chemo, I had surgery, radiation, and now continuing with herceptin and perjeta. Each cancer is different, so that’s why I think different treatment plans. Very best to you.