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Can you have 2 cancers in same breast?

jo jo's picture
jo jo
Posts: 1175
Joined: Jun 2010

When i was at my doc's they just happened to state something about my CANCERS...i said you mean cancer not cancers...she said no you had two different types of cancer...I was floored cuz nobody told me this and im just finding out now. What the heck!
Anyway she said i had DCIS and IDC both in the same breast. Has anyone had 2 different types like this or am i an odd ball with all the weird corks again or still.
Man this has just been one weird week.

RE's picture
Posts: 4644
Joined: Feb 2004

I am surprised they did not tell you this upfront, my sister has 2 different cancers in one breast and a different cancer in the other breast so three different cancers total. My first and second cancer's were one and the same, 9 years later the new cancer was not related at all to the original one which is a good thing because the original cancer was a more deadly form.

❤ RE ❤

Posts: 5
Joined: Jun 2010

In 2008 I had DCIS stage 0; just had mastectomy with immediate reconstruction(with tramflap); no treatments, no lymphs removed... However, then this past April 2010 went for Annual exam; BOOM...the other breast; first said to be same kind of BC DCIS but with chronic mastitis in the background.. then after mastectomy which he removed the main lymph node, the pathology report was DCIS, BUT ALSO CONTAINED AN INVASIVE CANCER WHICH MADE UP 2.5 OF THE 3.0 SIZE...so they said I actually had 2 different types of cancers in the same breast... one was same as first breast, but the second was the most aggressive type of BC you can have(triple neg; grade 3 stage 2a. Praise the Lord, there were no cells present in the lymph nodes, nor in the marginal area...had PETSCAN....all showed normal and good..but my oncologist set up 8 treatments 4 A/C and 4 Taxol (1 every other Thurs). The A/C have about killed me literally...so sick, but have worked since the last one; now I start on TAXOL this Thursday...sure pray it is better on my stomach(I have Fibromyalgia and IBS. But yes there is such a diagnosis as 2 different cancers at one time...kind of scary, since no one that I am aware of in my family have had it, except distant cousins...
Pray sll will be well with you.

MomMichelle's picture
Posts: 93
Joined: Jun 2010

I too was first diagnosed with DCIS but after the mastectomy, they found a very small area (4mm) of IDC. I think it is not uncommmon. Obviously when first diagnosed as DCIS, you hope for there to be nothing else found. Often the doctors, if they know ahead of time, will treat your cancer looking the more critical one. If they had not found that 4mm invasion, I would not be looking at chemo starting this week.

Sher43009's picture
Posts: 602
Joined: Nov 2009

Hi Jo Jo

I also had both IDC and DCIS. The way it was explained to me is my cancers started with DCIS which means it stayed in the ducts then some of it increased or grew outside the ducts into IDC. My surgeon gave me copies of my pathology reports then explained what everything meant on it.

Hope this helps.

TraciInLA's picture
Posts: 1994
Joined: Jul 2009

The way Sher explains it is exactly how my surgeon explained it. My biopsy found the IDC, and the surrounding DCIS was found during surgery -- my surgeon sounded like he expected to find some areas of DCIS, he wasn't surprised or concerned at all.

And...just because I have to be an overachiever :-), I had ILC (invasive lobular, rather than ductal) in the other breast.

It's like Buy One Cancer, Get One Free -- oh, how I love a good sale! :-)


DebbyM's picture
Posts: 3293
Joined: Oct 2009

I too had IDC and DCIS. Looks like most of us did.

Hugs, Debby

jnl's picture
Posts: 3873
Joined: May 2009

I had ductal and invasive breast cancer. I had a lumpectomy and radiation treatments, no chemo.

Hugs, Leeza

lillith's picture
Posts: 29
Joined: Jul 2010

I had 2 tumors in right breast: 1st lump was 2.7cm, 2nd lump was 1.7cm. Both were IDC but had very different genetic profiles (OncotypeDX breast cancer assay from Genomic Health). They weren't from the same source or whatever. Also they were not in same quadrant making it Multicentric BC.

Because there were 2, they told me I had to have a mastectomy - no lumpectomy.

2Floridiansisters's picture
Posts: 382
Joined: May 2010

I was diagnosed with having DCIS and Invasive Lobular Carcinoma in my right breasr back in May. The mamogram picked up the DCIS and not the ILC, I went for a steriotactic core biopsy and that is when they discovered I have the 2 types, one was sitting directly on top of the other.

I am having chemo to shrink the ILC, it was originally 4.5 cm, now that it is shrunk I will be having a second MRI to see how much is still in there. I am scheduled for a lumpectomy on Sepember 15th, then after that I'll do 33 radiation treatments.

elm3544's picture
Posts: 748
Joined: Jul 2009

yes.I had IDC and DCIS, they were right next to eachother. The way it was explained to me is they were the same type of cancer, just one had spread to the margins and one hadn't. I had a lumpectomy and both were removed leaving one big cavity.

jk1952's picture
Posts: 613
Joined: May 2009

I'm an over-achiever like Traci. I had three kinds in one breast: invasive lobular, DCIS and LCIS (same as DCIS but lobular, not ductal). I would think that the two lobular were related, but not the ductal. All were in the same area.

Nine years later, I had DCIS in the same breast but in two different locations.


carkris's picture
Posts: 4554
Joined: Aug 2009

the way they have explained it is true, the DCIS may have become an invasive cancer at some point they just dont know when. I had IDC 8mm -1cm my first time, and had to have a mastectomy because they could not get margins. turns out I had scant but scattered DCIS and I still had a local recurrence. 16 years later this one is lobular, I think they were pretty suprised. It did not show up on mammo, lobulars are sneaky and dont form in lump like patterns so dont show up as well. MRI 's pick them up better. I was angry because I didnt know this and would have asked for one. I think its best mammo every year and MRI everyear, so you have something every six months.

Angie2U's picture
Posts: 2992
Joined: Sep 2009

I had two cancers too, DCIS and IDC. I think it pretty common actually.

It states that on my pathology report too.

Hugs, Angie

Posts: 255
Joined: Feb 2010

I had three calcifications lined up smartly....one was dcis, one was idc, then other was "just" a calcification. Like Angie says, it's pretty common.

lillith's picture
Posts: 29
Joined: Jul 2010

that is a really good idea to have an MRI or a mammo every 6 months. My 2nd tumor never showed at all on mammogram or on sonogram. It wasn't seen until the pre-op MRI with contrast. I'll ask my oncologist about it.

jo jo's picture
jo jo
Posts: 1175
Joined: Jun 2010

Ok great now were all oddballs and im not the only one!
I knew there were more reasons why i fired my onc doc...cause he neglected to inform me of this...bad doc, bad!

jackiejhm's picture
Posts: 169
Joined: Feb 2010

I had the same dx. You are not alone, my dear JoJo! xoxo, Jackie

VickiSam's picture
Posts: 9085
Joined: Aug 2009

I had 3 different cancers in 1 breast ? Not trying to out do anyone, just asking ?

Vicki Sam

Sher43009's picture
Posts: 602
Joined: Nov 2009

I'm also Her2+ and on Herceptin every 3 weeks (only 3 more to go!!). Her2 is a protein not a cancer. It attaches itself to the cancer telling the cells to multiply faster making it spread faster. Herceptin works as a blocker of the Her2 protein simular to what Tamoxifen does to estrogen. (I'm also ER & PR +--triple +). What fun!!


tjohnson2310's picture
Posts: 168
Joined: May 2010

I have both in the right breast. But when they told me they focused on the IDC. I also read it on a copy of mt pathology report.

sohardbnme's picture
Posts: 129
Joined: Jun 2010

I had two clusters of microcalcification...
One is DCIS grade 3 and the other is IDC grade 2 in my left breast...

cahjah75's picture
Posts: 2631
Joined: Jun 2010

all oddballs. lol My surgeon explained to me why breast MRI and pathology reports were different. I had Invasive Lobular Carcinoma in right breast (6.1cm) but after pathology it was only 3.4cm and the rest was LCIS. I also had LCIS in left breast just waiting it's turn. In the end it's all the same - BC.

filimu's picture
Posts: 74
Joined: Aug 2010

Every one of us is wonderfully perfectly, abnormal in her own way... The true definition of NORMAL is just a setting on a clothes dryer. :)

New Flower
Posts: 4299
Joined: Aug 2009

all. Nothing is unusual in this world.

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