Any Had Chemo for IDC 1mm Or Less??

That would be me.  But I'm 60 years old.  Med onc (2 of them) said no chemo.  But I'm also HER2-, too.  Did you do chemo?

Docs didn't explain, though, what the % benefit chemo would be with an oncotype score of 26 along with the other factors.  I assume there would be a benefit, right?  What would it have been?

The DCIS was originally (microcalcification circle, anyway) .9cm.  After the biopsy that was gone.  After the lumpectomies (2) they said I had at most IDC of 1.6mm.  But that was enough to get an oncotype dx assay.  Are you postmenopausal like me?

Ruth

Me again...... I had chemo for .4cm IDC tumor that they found during my bilateral.  I am ER+, PR+ and HER2+.  So because of early dx, and HEr2+ combo, chemo was recommended.

No chemo for me either.  I had a lot of high grade DCIS with comedonecrosis and a 1mm microinvasion of IDC.

Dejaboo,

May I suggest you visit the Her2 Support Group site:  http://www.her2support.org/ ?   There you will find a very helpful discussion on this subject of when chemo is now recommended or us Her2 + gals.  Your pathology presently suggests full blown chemo, however I would probably seek an onc who would give me Herceptin with just Taxol.  Onc's as yet are not comfortable with giving Herceptin without chemo.   

Here is the link to that discussion:  http://her2support.org/vbulletin/showthread.php?t=37875

Your wild card is the Her2.  How positive are you?  What was your score with the FISH testing?  Unless you are just barely Her+ overexpressing, I would get Herceptin somehow, someway regardless of tumor size.  Her2 is a deadly killer.  It has come back with only DCIS that was Her2 positive.  Since your are Her2 + I suggest you spend time on that website as you will find invaluable information.

I was 7mm, triple positive, stage 1b.  I did 4 rounds of AC and 4 rounds of TH.  Presently I am doing my year of Herceptin and 2 years of Tamoxifen/3 years A.I. therapy.

To rdRake0:  You asked about the benefit of chemo with an Oncotype score of 26.  Mine was 20, and with my onc appointment 4 days away when I got this score, I was wild for information.  So I called the Onctotype lab and got it straight from them:  a study is still being done for women with scores between 18 and 30.  Below 18, there is no benefit from chemo.  Above 30, there is a large benefit.  The in-between, which is where you and I fall, is still an unknown.  So I asked the lab guy, "So it's anyone's guess?" and he said "Yes!"  (I did not want chemo and my onc recommended not having it since 20 was so close to the no-benefit range.)  I hope this info is helpful to you - it certainly was to me.

My IDC was 7 mm grade 3, my Oncotype was 26, and I start chemo on Tuesday.  I am 58, but both the oncologist and I felt a 17% chances of recurrrence in the next 10 years was not acceptable for me.  I had children late in life, my youngest in 15 and I intend on being around for the next 20-25 years.  Also, my tumor was grade three and had other very aggressive characteristics.

rdrake0, it would imporve byabout  5%, which they say is what they based their recommendations on.  Five percent is their number for recommending chemo.  Plus, my tumor showed very aggressive characteristics which they felt would make it more likely to reappear.  The oncotype TAILORx trial recommends chemo for those with a oncotype of 26 and higher.  I had decided I would do chemo if my number was 26 or higher.  The core biopsy I had prior to surgey retrieved a large chunk, so my tumor was originally closer to a little over a cm.