BAC stage 1B lung cancer - 1261275

wtrevino
Posts:6

I was diagnosed with stage 1B lung cancer Nov 15. Mucinous Adenocarcinoma, it was almost 2 cm I had the upper part of my right lung removed. The lymph nodes all came back negative. The oncologist said it is a stage 1B because The tumor has spread into the thin, serous membranes surrounding the lungs, also known as the visceral pleura. They say it is my choice for chemo and I do not understand much about this cancer or my choices. Any help or information would be great!

Forums

catdander
Posts:

There's a lot written on the subject of post surgery chemo (adjuvant therapy). Consideration for adjuvant treatment becomes more weighted when the visceral pleura is involved. From his post about border line cases, http://cancergrace.org/lung/2007/10/02/factors-for-adj-chemo-in-borderl… Dr. West states, "Finally, another factor to consider is the involvement of the visceral pleura, the lining on the outside of the lung. This is reflected in the staging system, since even a smaller tumor that measures less than 3 cm becomes a stage IB NSCLC if it involves the visceral pleura. Here’s a survival curve from a series of stage I cancers that shows the difference in survival between those patients who had or did not have visceral pleural invasion (sometimes abbreviated VPI)".

And prob more direct info, http://cancergrace.org/lung/2012/05/15/modifying-factors-adjuvant-chemo…

I hope this helps with your understanding,
Janine

cards7up
Posts: 636

Janine, is this considered mucinous BAC, though I know they call it adeno now? Would treatment still be the same? I referred this person here to see what Dr. West would say about this situation.
Take care, Judy

catdander
Posts:

Yeah, I saw BAC after I posted. Dr. West will likely comment this evening. If not I'll contact him.
Thanks and Happy New Year!

Dr West
Posts: 4735

Bronchioloalveolar carcinoma (BAC) really refers to a non-invasive process. If it's invasive, there is really no specific place for tailoring a treatment recommendation for or against post-operative chemotherapy based on the name the pathologist gives it.

Making a recommendation for or against chemo just based on the vagaries of the staging system isn't how I or most other lung cancer experts approach the question of the potential value of post-operative chemotherapy. In the absence of lymph node involvement. the leading recommendation of a threshold for favoring chemo is 4 cm. I might use the presence of visceral pleural involvement (VPI) to nudge toward a recommendation in a highly motivated patient with a 3.5 cm tumor, but I would consider a 2 cm tumor with no lymph node involvement to be pretty far from an appropriate threshold for recommending chemotherapy, regardless of other features such as VPI.

-Dr. West

catdander
Posts:

Thanks Dr. West. This is a good example of why I love this site so much...Professional insight in this world that knows no hard or fast rules.

Happy New Year!
Janine