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Possible 2 different cancers in lungs?

Posted by guyjeff123 @guyjeff123, 1 day ago

On 5/1/25 I had an ION CT Scan and then a Pet Scan of my lungs. On the CT Scan it showed a 6mm node that was a 5mm node 1 month ago and it also showed the 1 cm node that was new 1 month ago and unchanged now. The PET Scan showed two and possibly 3 areas that lit up. The first area was the 1cm node in my right upper lobe and the 2nd was a new 5mm node in my left upper lobe. There was one other area that my doctor showed me that looked like a cloud and in the center there was something that lit up dimly. My question is about something my Pulmonologist said. he said " We are going to do a robotic CT guided biopsy of the node in my right lobe and the one in my left lobe. He said he hoped they were the same cancer and they caught it early. The best case scenario is that both nodes are the same type of cancer, but they developed separately in each lobe and if they are different cancers, that would be Bad." I asked him to elaborate on "Bad," but he didn't. Is it common to have two different types of cancers in your lungs? Also, what makes that a worse case scenario? Thank you for any responses to my query.

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frouke | @frouke | 1 day ago

I had a nodule that was deemed suspicious and three years later it was cancer, I also had a new nodule right beside the malignant one and it was also cancer but not the same as the other one. This was dealt with by performing a lobectomy removing both, I didn’t know this until after the surgery, I never heard anything else about having two different cancers but it sure made me feel uncomfortable, I would think that if this was more serious, they would have told me.

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frouke | @frouke | 1 day ago
In reply to @frouke "I had a nodule that was deemed suspicious and three years later it was cancer, I..." + (show)
@frouke

I had a nodule that was deemed suspicious and three years later it was cancer, I also had a new nodule right beside the malignant one and it was also cancer but not the same as the other one. This was dealt with by performing a lobectomy removing both, I didn’t know this until after the surgery, I never heard anything else about having two different cancers but it sure made me feel uncomfortable, I would think that if this was more serious, they would have told me.

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I would like to add, I’m sorry for your problems and that you have a lot to deal with. I’m not sure why the doctor is making more out of this, my research is brief but it seems that this situation is better than one cancer spreading and also, having two cancers it’s easier to treat. Of course there’s a lot more info out there so just ask, good wishes.

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denzie | @denzie | 19 hours ago

It is possible to have more than one type of cancer in the lungs. It's possible to have two different cancers within the same lobe and even within the same mass or nodule, adenosquamous being the one I hear about most. It's rare but it does happen.

14.5+ years ago I was diagnosed with mucinous adenocarcinoma. This year I have been diagnosed with a new and completely different lung cancer, adenocarcinoma with a KRAS G12 F mutation.

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sonshine161 | @sonshine161 | 17 hours ago

I had a biopsy showing adenocarcinoma but after removing my lung after closer examination they also found sarcomatoid carcinoma, a much worse cancer. So far it seems like they were able to capture all the cancers but they had to take out my left lung to get them. I’m doing much better than i thought i would including playing golf and walking 6 miles yesterday

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caryjay | @caryjay | 7 hours ago

It could be that they are not cancer, even if they light up..it could be an infection or inflammation.. that is what I had.. they thought it was systemic cancer, they were around the same size nodule..

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